What are /r/whatisthisthing's favorite Products & Services?

From 3.5 billion Reddit comments

Timothy Hay Sticks Chew Toys for Guinea Pig Chinchillas Rabbit Hamsters Squirrel and Other Small Animals

https://www.amazon.com/Timothy-Chinchillas-Hamsters-Squirrel-Animals/dp/B07PTZGX23?ref_=d6k_applink_bb_marketplace

This is a "separator" that usually resides inside the grip of a hair brush.

See the product images of this hair brush for example: https://www.amazon.com/Olivia-Garden-Ceramic-Round-Thermal/dp/B0016KWWW2/ref=sr_1_152?keywords=hair+brush&qid=1570184388&sr=8-152

I always wanted to build one and went so far as to buy a book on the subject. Look out world! In the ensuing 22 years I've made no measurable progress.

It's a door jamb switch (an old one). Two common purposes, could have turned on the lights when the door was closed, or part of an alarm system (which I don't think would be likey for a bathroom).

Edit: Here is a modern one: https://www.amazon.com/dp/B0036ZA9F2

I think you could be on to something.

Tom and Jerry: Yankee Doodle's Cat-Astrophe 1990

Here's a side-by-side: https://imgur.com/a/s5Cmj

Also, how did you get that?!

Might be for precision oiling where only a little oil is needed.

https://www.commandoproducts.com/precisionpenpointneedleoilerwithclearsewingmachineoilforpreciselubrication-1-1.aspx

https://www.amazon.com/Precision-Premium-Machine-Lubrication-Commando/dp/B00500UVNQ

That is a key chain hacksaw I saw on a prepper website. Also was this a full-size bar of soap or a standard "hotel" size? (which is also short term prison size)

https://smile.amazon.com/Shaped-Keychain-Keyring-Hacksaw-See-saw/dp/B074W2S95X?sa-no-redirect=1

Edit: putting one of these in a hotel soap bar and then putting it back on a cleaning cart would be a funny prank.

Where in England? Its most likely a "Stay Behind" box made for the British Auxiliary Units. These units were created in case the Nazis successfully invaded Britain. The build little bunkers all over the country, more in certain areas. Basically dug a hole, made a bunker and covered it up and made it looked like the natural landscape and had one or two entrances/exits. they would be loaded with supplies to form resistance groups and offer a place to coordinate attacks and they would have provided protection and security for those groups https://www.academia.edu/21928771/Myth_and_Reality_The_Second_World_War_Auxiliary_Units http://www.pillboxesuk.co.uk/

Agree that this is a great idea. As a young, aspiring paleontologist, I got into collecting all kinds of rocks. My parents got me a mineral identification kit like this one that walked you through a series of binary tests to identify different minerals. After all, if you want to find sharks' teeth, you need to know the kind of rocks they're usually found in...

Hijacking top comment to show this, please get one and look for other things in your home.

Wireless Lens Detector for Anti Spy Hidden Camera, Adjustable Detection Sensitivity Signal Bug RF Finder, GSM Voice Device Laser Detector https://www.amazon.com/dp/B07DPD12YZ/ref=cm_sw_r_cp_apa_i_H3mCCbF2EPKC3

It won’t have any gas in it… I doubt there is a lighting gas plant in your town in this century. (It was usually a different type of gas than modern cooking/heating gas.)

An enjoyable book on the history of artificial lighting is “Brilliant” (by Jane Brox) which covers the gaslight era in detail!

Seems to be a jeweler based in Sri Lanka.

Looks like they glued this onto a box: https://www.amazon.com/Faceted-Paperweight-Decoration-Christmas-Birthday/dp/B08G86P9Z8

Brass or copper likely. Seems like two snake heads. Indian subcontinent tends to believe in the healing or balancing powers of copper and many men wear a copper bangle as a result. Snakes can mean many things, in hindu mythology one serves as a vehicle and friend of a God, Vishnu.

See for example this, a similar-ish style. https://www.amazon.in/Copper-thick-bracelet-attractive-look-d4/dp/B00R6IEFT6

Sea Palace of the Emir.

Picture from the ground

Solved!

I did some googling based on this and found it: Silver Tone Saint Christopher St Anthony Key to Heaven Medal Key Chain, 2 Inch https://www.amazon.com/dp/B01GF06S5Y/ref=cm_sw_r_cp_api_HZf8Bb7GGV6XN

It's a travel "door lock".

Like this:

https://www.amazon.com/Portable-Additional-Unauthorized-Traveling-Apartment/dp/B07T9K22NK

This^ Literally just called a brass hammer lol : https://www.amazon.com/BRASS-HAMMER-SMALL-SOLID-JEWELRY/dp/B00TKGA0H8 it's used for soft metals, brass has more reverberation than other hammers so they don't mark the metal that you're striking.

You mentioned a kiwi. I used to eat a lot of kiwis as a kid. Sometimes there would be a hard white piece inside at the (stem?) end about the size of your "tooth."

I think that's what you have but cursory googling didn't give me any results.

(Edit) This guy asked a question about a white spear inside his kiwi but no one has answered him. I'm 90% sure you encountered the same thing.

https://www.quora.com/What-is-the-spear-like-white-thing-on-the-inside-end-of-the-kiwi-fruit

My grandfather had these. They slip over the bottom of the glass to absorb condensation and to insulate the glass. I think the drinks are bloody marys.

I found some modern ones https://www.amazon.com/Terry-Assorted-Colors-Beverage-Covers/dp/B0081S5C0Q

It’s a tool used to help someone put on a bracelet if your alone. You put one end of the bracelet in the clamp, hold it in the hand you want the bracelet on, and you can use your other hand to clasp it.Miles Kimball Bracelet Tool Jewelry Helper

It's a collapsible chopstick. Connect the metal cover to the metal end of the wooden chopstick to extend its length for eating.

Kikkerland Collapsible Travel Chopsticks

https://www.amazon.com/Beauty7-Extra-Large-Training-Stimulator/dp/B0714JQF9D/ref=pd_lpo_vtph_121_tr_t_2?_encoding=UTF8&psc=1&refRID=M9FYHRNHQ9W4THAPE0TS

​

And I'm pretty sure that's gonna effect Amazon's recommendations for me for quite some time so...you're welcome.

It's a flashing LED module out of a kid's shoe:

http://www.alibaba.com/product-detail/Waterproof-shoes-light-led-led-flashing_60190982538.html

http://www.robotroom.com/Light-Up-Shoes-Vibration-Sensor.html

That makes sense, here's one that looks similar: https://www.rehab-store.com/p-alimed-door-alarm.html

And another one: https://www.amazon.com/Lewis-Lightweight-Compact-Travel-Flashlight-x/dp/B000SKZM0A

With the slats, I thought it might be a strainer of some kind, so I searched for strainer on amazon and this was the first to come up. Are the clips in the correct position for this?

Kitchen Gizmo Snap N Strain Strainer, Clip On Silicone Colander, Fits all Pots and Bowls - Lime Green https://www.amazon.com/dp/B018W9JII0/ref=cm_sw_r_cp_api_i_ONGaEb9SXTJZH

Zyklon B was the poisonous gas used by the Nazis in the death camps.

When you search for images, the only ones that look like yours are from pinterest and the ones that are in museums look totally different.

Using tineye on the pinterest image isn't helpful.

Looks like a modern day tin can. Maybe it's a fake produced by some neo-Nazi merch company? Hopefully some WWII buff finds this and puts it to rest.

By chance a large oil filled transformer nearby? They appear to be heavy test tubes fortransformer oil testing.

https://www.semanticscholar.org/paper/Effect-of-oil-replacement-on-furfural-analysis-and-Lin-Yang/5812938302cd3fd1ad7e617f4909d1503d46a10b

Oh shit, maybe we're on to something here, just found this on amazon https://www.amazon.com/River-Oracle-Invertebrate-Sample-Vials/dp/B075FYKJN4

My first guess would be that it is the separation/recrystallization of the plasticizer used in that plastic. Strange though that it only happened to one key.

Edit: could be separation of various oil plasticizers used in cellulose nitrate, similar to this. I think I've also heard about this happening with phthalates in cellulose acetates.

Edit 2: whisker like recrystallized products are found in cellulose acetate plastics that are pretty similar - paper here. I work in a museum, this is fun.

And the link shortened without tracking ID:

https://www.google.com/search?q=Loga-Calculator+Cylindrical+Slide+Rule&tbm=isch

I recommend https://gitlab.com/KevinRoebert/ClearUrls to get rid of tracking crap in URLs.

Amazon sells them for a great price. I love them because you can throw them in the dishwasher or boil them to kill bacteria.

Edit: link

Dress shield, aka underarm sweat pad. To protect fine fabrics like silk from sweat stains. In the old days they were made of cloth and you pinned them to the garment and washed them after use. Now they stick-on and are disposable.

https://www.amazon.com/Underarm-Disposable-Hyperhidrosis-Excessive-Sweating/dp/B07VYHRC5J/ref=asc_df_B07VYHRC5J/?

The Ice Warden Self-Bondage Time Lock

• Once the water turns to ice, you now have a solid frozen core inside your lock
• The lock will not release until the ice has melted
• Attach to cuffs, rope, suspension gear...any setup you can imagine

Wonder if we can get more pictures, but it looks like a water filter refill cartridge.

Edit: The little black rocks are most likely the active carbon that filters out organic impurities for part of the filtration process.

Fun fact, potassium sorbate is what's preventing me from making Hawaiian Punch wine!

I've experimented by making wine out of all types of juices by simply putting a little least into the top of a 64oz juice bottle, adding a water bubbler where the cap would go, and then waiting a few days.

I wanted so bad to use the above method to make wine out of Hawaiian Punch, but alas, potassium sorbate is a fungicide meant to prevent that very thing. The yeast just float on the top, dead.

I did manage to make wine out of Capri Sun, though. Would recommend.

This listing for another trolley that also has a 5th wheel in the middle says that it makes it easier to steer and turn on the spot. I guess it acts as a pivot so that if you push the handle sideways the trolley turns rather than just moving sideways.

Looks like it could be some kind of physical USB key that enables some piece of specialty software or hardware to be licensed to run. Not uncommon for really high end software. I would guess that the odd shape of this thing makes it so that it can only be inserted in to a specific piece of hardware to prevent someone from loading this in a normal USB port and potentially copying the contents.

Edit: not sure if this helps, but the barcode translates to FJAXFAW4

Edit 2: Found this by searching for "USB software key specialized format" - https://www.amazon.com/dp/B074W9Q275?m=A314BA49BZ6MVR&ref_=v_sp_widget_detail_page

It appears to be a kind of audio book format for the blind that is available through some library systems.

They are called Lid Sid and are for keeping a gap between a cooking pan and its lid whilst cooking to help prevent the water boiling over.

https://www.amazon.com/Saucepan-Release-Silicone-Monkey-Business/dp/B007E7WQVS

The ball, usually a blue color attracts dear/horse flies. Once they land on it they can't leave as they take off vertically and the net catches them. You see them in areas with livestock to protect them from the flies.

https://www.amazon.com/Bite-Lite-Professional-Control-Chemicals-Electricity/dp/B00T6MS6LI

My guess is that you actually expand your fingers with them in the slot while holding the ball part in the palm of your hand. Rock climbers do that with rubber bands.

Edit: like this maybe

https://www.amazon.com/Vive-Hand-Finger-Strengthener-Strengthening/dp/B071HY5HYF

Here you go op. Enjoy!

https://www.aliexpress.com/store/product/7-Mode-Silent-Mini-Bullet-Granule-Vibrator-Remote-Control-Self-Comfort-Love-Egg-Vibrator-Pink-Color/1937035_32651047311.html

Edited to non mobile link

I think there may be scanner apps for phones that will combine all the photos you take of a document. This might be one of them.

It's a WiFi antenna. It extends the normal reach of the WiFi card.

The connecter you have there should plug into the WiFi card on the back of the computer.

Edit: Here's an Amazon link to a similar one. Best I've got atm.

$6 on Aliexpress is the expensive stuff. Case in point.

No, what he is mistaking for teeth are actually what we geologists call hackle fringe fracture pattern.

That actually looks like a 45 degree offset picatinny rail. It's used for mounting stuff like flashlights on guns and airsoft guns.

Edit: I'm fairly confident that it is this exact product:

https://www.amazon.com/OctagonStar-Degree-Offset-Picatinny-Mount/dp/B01LWZXIHR

Might be a seaweed farm, according to Wikimapia

yeh it looks like this thing summer breeze air freshener

*also- "I can barely open a jar of peanut butter, why would I be able to identify that?" That's awesome ..this is probably going to be my new go-to excuse whenever I don't want to do something.

The creepyass thing on the right, you mean? It says ningyo no miira, which is some kinda Japanese Fiji Mermaid hoax.

You should go see it, OP. It's apparently at this temple.

Tell your friends that they need to lay off the pipe.

It's for salad dressing.

It's a key to paper towel dispensers, and toilet paper dispensers. Well, actually each side is a key. This particular one will fit Georgia Pacific products. Amazon link to this key.

Looks very similar to bitter melon pills. Also note similar looking items in the frequently bought together section. They do not appear as green though.

[Medicinal Korean Herbal Pills] 100% Natural Bitter Melon Pills ( Bitter Melon / 여주 환 ) 4oz ( 113g ) https://www.amazon.com/dp/B01F9P91S2/ref=cm_sw_r_cp_apa_4MuAAbX8876HR

It's pretty much been figured out and I already posted it, but to be exact and for anyone Googling, it's a Royal Gun Factory:

Firing Key, Mark III / Firing Pistol, Mark III / Pistol Grip, B.L. and Q.F., Carriages, Mark III / Gear, Electric, Firing, Pistol Grip, Mark III.

Source and explanation: https://books.google.com/books?id=DTU8AQAAMAAJ&lpg=PA128&ots=-QNCaXSa2P&dq=%22firing%20key%22&pg=PA128#v=onepage&q=%22firing%20key%22&f=false

I really don't think it's a wood holder. typical rounds are cut at around 16" and this looks to be more like ~8-10" across. Typically firewood holders are made to be wider/deeper than the logs fro stability. Additionally, they are usually made in a spot that makes sense in terms of accessibility, and with the four feet of lawn you have between your walkway and the structure, it seems more like a privacy screen.

It is more likely a brick fence with wooden spans that have been removed, or like someone else said there was a lattice between them on which plants could grow.

source: contractor, although that doesn't mean I'm right!

mm...I don't really see any of the normal cues I would use to narrow down the location here. Honestly I couldn't even be 100% this is in Japan, but then again there's a whole lot of Japan that I'm not familiar with so I can't say one way or the other.

The only thing I've been able to find of even remote interest is this stock photo taken by a Thai person that resembles the streetlamp in the photo, with an extra middle lamp. Sorry I couldn't be of more help, but on the other hand I have just discovered that I am a hack compared to /u/DavidLasnier and the good people at /r/whereisthis

I have some in my closet doors I believe they're for an automatic light system. (Kind of similar to the refrigerator light, open the door it comes on.)

https://www.amazon.com/Leviton-1865-Single-Pole-Momentary-Commercial/dp/B0036ZA9F2/

It's a water saving device. I had an identical one on the kitchen faucet at one of my old apartments. When you're hand-washing dishes, or brushing your teeth, it lets you turn the water on and off by flipping the little lever instead of turning the taps. Makes it more convenient so you're less likely to let the water run for no reason.

Looks like a wrench that comes with a new kitchen faucet. It's used to tighten the large nut in the center and designed to work around the water hose. Similar to this.

https://www.amazon.com/Moen-118305-Installation-Tool/dp/B002PB1JJS

It is a "suture hook" it is in the fifth listing from the bottom here

This listing instead labels the same device as a "retraction hook" .

So it is a hook thing used in dissection for many purposes :)

Google Earth historical imagery shows the gray box was added October 20 2012. The latest image available is June 2 2015 but the site is obscured by clouds. The area is not obviously censored on Bing maps, but nothing unusual is in the area: https://www.bing.com/maps?osid=8d9eb2e5-d07b-4e1b-88fc-aee13c137228&cp=30.85176~81.652681&lvl=15&style=h&v=2&sV=2&form=S00027

RSA OTP token. The number sequence displayed is unique to the device, and can be used as a second form of authentication (in addition to a password) to grant access to email, VPN, etc.

That seam could be the Taenia Coil, you can see it here. You can also see the segments of intestine in your photo. My Father was a trapper, he used to leave animals out for the dogs to eat and their intestines looked just like this after a couple days in the sun. The only thing that doesn't fit is the lack of a smell. Even if it isn't intestine, from the picture I feel like there's no way that thing doesn't have a bad odor! Haha

You can buy a brand new, fancy schmanzy one for the low, low price of 249.99 at amazon.

https://www.amazon.com/Professional-Wall-Mounted-Corkscrew-BOJ-Chrome-Plated/dp/B007YJCEFO/ref=sr_1_3?ie=UTF8&qid=1509903270&sr=8-3&keywords=wall+mounted+wine+bottle+opener

It's for spaghetti. The holes are to measure serving sizes.

Here's a new one:

https://www.amazon.com/Pillsbury-Pasta-Measure-Server-White/dp/B013INK1AY

Dutch Renaissance Domino Game(amazon link) - rules are lost, "historical decor".

I think it's an old Jewelers or engravers vise like one of these but an old version

Banding machine %100. Used to wrap poly bands/straps around boxes or products, usually when preparing them for shipping.

Finally got one! WooHoo! https://www.amazon.com/Semi-Automatic-Polypropylene-Strapping-Machine-AB-10-140-03/dp/B01AOKSWLY

It's the gas fireplace globe valve. there should be a matching key that sits over the rod. However, if the rod moves side-to-side I would have the valve checked before using the fireplace. You can buy replacement keys online.

I got my dad this collar for our black schnauzer last year (he was having trouble keeping track of him in the yard at night) and even though the advert looks pretty shopped it works perfectly, although now he is slightly creeped out by the floating orange circle wandering around the yard.

Acupuncture Magnetic Therapy Meridian Rolling Massage Body Scrape Apparatus

Key Words: Acupuncture Apparatus/Meridian Massager/Body Scrape Apparatus

Features:

A multifunctional device that can be used for Acupuncture Magnet Therapy, Meridian massage, and Scrapping therapy.

Promote blood circulation, speed up the metabolism, and activate the cell activity.

Sspeed up the toxin excretion so as to relieve pain.

Portable design for convenient use at home or treval.

A wonderful gift for your family or friends.

Specifications:

Item: Acupuncture Magnetic Massage

Handle Material: Plexiglass

Wheel: Metal + Magnet

Color: As picture

Application: Full body

​

https://tinyurl.com/y39ry5nl

My dad used to keep pigeons and had these around his sheds and the house, i could hear the noise and it would drive me insane whenever i was in the garden. Anyway it is to deter cats, rodents all that sort of thing.. https://www.amazon.com/FAYINWBO-Activated-Squirrels-Protected-Courtyard/dp/B07P6673C5/ref=sr_1_8?keywords=sonic+cat+repellent&qid=1569791249&sr=8-8

CPAP hose holder

https://www.amazon.com/BodyHealt-CPAP-Hose-Holder/dp/B078HQ9RF5/ref=mp_s_a_1_1_sspa?keywords=cpap+tube+holder&qid=1564153068&s=gateway&sprefix=cpap+tube+hold&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExTDRWMENMTzVWO...

Not sure how this came to mind, but it looks like a part of an adjustable mount for a prism for some kind of laser testing equipment. Think Real Genius.

I have this book on my bookshelf about perfume and it says that with the exception of some very cheap fragrances, they do indeed last a very long time.

Similar to this chlorine float but I can't find the exact design. It's definitely a chemical float of some kind, be it for a pool or clothes washer, something of that kind.

It’s the gripper for a zoodler or spiroslicer. Look in the product photo.

Delightful Chef Spiralizer Vegetable Slicer Zucchini Spiral Spaghetti Pasta Noodle Maker https://www.amazon.com/dp/B00KHD7NAA/ref=cm_sw_r_cp_api_i_tRkdCbZTQV7W8

It looks like calcium chloride, an ice melter. Maybe it was put down on the roads, and then you dissolved it by washing your window and then it recrystallized.

For watch repair. In yours, the item on the right is for removing watch backs. Blue item on left is for removing and inserting pins on metal watch bands.

https://www.amazon.com/EZTool-Watch-Repair-Wrench-Tool/dp/B01DU47EEM

Ohhh have you tried this type of detangler?

https://www.amazon.com/Tangle-Teezer-Original-Detangling-Hairbrush/dp/B0086QEO7K/ref=mp_s_a_1_4?keywords=detangler+brush&qid=1570199629&sprefix=detangler&sr=8-4

You can use it on wet curly hair from the bottom up and it works great and is super quick! Then you can just go back in after and blow dry with a boars brush and you won’t lose any bristles!

It's a respirator

EDIT: More specifically it seems to be something called an escape respirator

>Escape respirator is a portable appliance regenerating breathable air to help provide respiratory protection for emergency escape from zones containing harmful gases. A cross-breed between a gas mask and a respirator, the emergency respirator is used extensively in mining and chemical industries.

Hand/finger strengthener

https://www.amazon.com/S-Sport-Life-Silicone-Strength-Stretcher-Expander/dp/B07R2862KY

It’s a solid fuel camp stove. The metal part folds out and you sit a pot on top of it. The fuel blocks are burned one at a time but are stored inside of it when not in use.

Edit: similar to this

It looks like the rings (like this) you can buy to put around the necks of bottles (usually wine) to prevent drips running down the bottle. That looks awful big for one of those, though.

> why the king of hearts is a blue heart

It probably came from a 4 colour deck although I've never seen a deck where hearts aren't red.

https://en.m.wikipedia.org/wiki/Four-color_deck

It also may have come from a deck like this one.

Bicycle Blue Dragon Back Playing Cards https://www.amazon.ca/dp/B00563IOQI/ref=cm_sw_r_cp_apa_Y6WWAb44D0Y51

That might be a whisky stone shaped like a bullet. It doesn’t look like the cap is separate from the rest of the shell. Is it pretty heavy?

https://www.amazon.com/dp/B0747Y5JZ2/ref=cm_sw_r_cp_api_i_FAA1BbVVBPG13

This seems like a possibility. Like maybe it's meant to keep something at a specific height/thickness? But then those usually have two points like these: https://www.amazon.com/Rose-Levy-Beranbaum-Signature-Thickness/dp/B007MP38N2/

This one's gonna drive me nuts!

You can get 'Humane Traps' that they just walk into, it's like a box with a flap that allows them to walk in but not out. You can get ones that can catch 4/5 mice.

If you use these, remember to check them regularly and place something inside for the mice to hide in (but not too much otherwise you won't be able to see if you have caught anything).

You can usually find these traps in pet shops or online (Amazon has a few).

Try putting some bait like peanut butter, they usually love it.

Edit_

I've used This One in the past, did catch 2 with it.

That’s a solar powered bird bath fountain. The beep you hear might be the impeller in the pump which can sometimes make a high pitch whining noise when run dry. It probably won’t make the noise if you move it at night.

Edit: here’s a link to a similar one

Given what others have suggested I think I found this item's product page on Amazon.

"Sobetter HDTV Antenna, Amplified Outdoor 150 Mile Range Digital TV Antenna"

I know it's solved and the answer is correct, but just throwing it out there that it could have been for an under the sink reverse osmosis system for cleaner drinking water.

https://www.amazon.com/Home-Master-TMHP-HydroPerfection-Undersink/dp/B00N2941N8/ref=mp_s_a_1_9?ie=UTF8&qid=1542197223&sr=8-9&pi=AC_SX236_SY340_FMwebp_QL65&keywords=reverse+osmosis+under+sink&dpPl=1&dpID=51kGrTY9-lL&ref=...

Ticket to Ride https://www.amazon.com/Days-Wonder-DO7201-Ticket-Ride/dp/0975277324/ref=mp_s_a_1_1?ie=UTF8&qid=1539595327&sr=8-1&pi=AC_SX236_SY340_QL65&keywords=ticket+to+ride+board+game&dpPl=1&dpID=61wLscAHHSL&ref=plSrch

It is a kelp/seaweed farm.

Higher res image

Key cap puller.

https://www.amazon.com/Rounded-Puller-Remover-Mechanical-Keyboard/dp/B07R48RFGY/ref=sr_1_14?dchild=1&keywords=keycap+puller&qid=1614177738&sr=8-14

It’s a collapsible head phone holder. Roll the cables on around and the cup holds them inside. Pretty cool other designs are better.

MAIRUI Earbud Holder Earphone Case Tangle Free Cord Organizer Earbuds Wrap Silicone Magnetic Headphone Holder Storage Case Cable Keeper for iPhone Apple/Samsung/Sony Earphones (Black) https://www.amazon.com/dp/B06WD8414D/ref=cm_sw_r_cp_api_i_JDanCbVNMTTHJ

Combination squares sometimes come with a variety of rules. Sometimes a six inch might be the handiest and sometimes an eighteen inch. They can also come with different heads to put on the rule. See https://www.amazon.com/Fowler-Combination-Square-Set/dp/B00GCEP2H4 for more examples.

Its a replica of a medallion from the Hunger games. Scroll to the comments you'll see a picture: https://www.quora.com/The-Hunger-Games-Catching-Fire-2013-movie/What-pictures-are-in-the-medallion-that-Effie-gave-Peeta

It looks very similar to this thing.

Maybe try screwing the cap on and then pulling it straight off? If you get what I mean? I think the sharpening tip is meant to be screwed onto the longer piece, and the cap pulled off. Turning it has inadvertently unscrewed the tip, leaving it in the cap.

The logo is for MG Cars. It looks to me like the metal part of this style of keychain, with the leather long gone.

It's a wipe-aid

Amazon link

Here's an example on Amazon. Note the inside of the bulb. I used them for two porch lights during halloween. https://smile.amazon.com/Flicker-Flame-Dances-Flickering-Orange/dp/B000OGYC22/ref=sr_1_8?ie=UTF8&qid=1545511375&sr=8-8&keywords=flicker+light+bulbs+1+watt