For a serious answer, they are a massage gun. The link I gave is one I've actually bought twice. Once for me, once as a gift. They are FANTASTIC but if you can get someone else to use it on you it feels 10x better lol
My aunt bought it so I'm not exactly sure, but it's basically this
PetSafe Drinkwell 360 Multi Pet Drinking Fountain - Customizable Automatic Water Dispenser for Cats and Dogs - 128 oz Fresh, Filtered Water Capacity for Healthy Pets - Filter Included https://www.amazon.com/dp/B001NIZAH6/ref=cm_sw_r_cp_api_glt_i_443X1GR6MHKCB92Y8N2H?_encoding=UTF8&psc=1
i dunno what the exact ingredients are but like its two liquid with different densities (like oil and water) and i think its just supposed to be fun to play with and look it. it pretty common in souvenir shops in this form. Or maybe its something else entirely, im not op
The keyboard is this one off amazon. The mouse is the Razer Basilisk in Quartz