Instead of using the rerooting tool to section the hair, I'd recommend getting a dental pick. Next to my scalpel and seam ripper, the dental pick is in my top 3 tools that I use!
It's not sharp like a reroot tool, so less chance of poking things you didn't mean to poke. The slightly hooked ends means you can get into all kinds of nooks and crannies. It's not just great for sectioning loose hair -- it can help arrange the part after everything is rooted and glued, sectioning plugs of rooted hair for braiding, etc.
This is similar to the one I use: https://www.amazon.com/Professional-Dental-Tarter-Scraper-Stainless/dp/B00KCXT7RC/ref=sr_1_14?dchild=1&keywords=dental+pick&qid=1625623880&sr=8-14
They're only a few dollars at the drugstore. Highly recommend!
Since you are only working on clay right now, and in the future, maybe plastic and vinyl, you don't really need an industrial strength dremel. A cheapie little $20 or so cordless will work fine for doll work.
My old dremel is a bit unwieldly, so I thought I'd pick up a cheap cordless so I would only have to drag out the big guns when the little one wouldn't do. But so far, the little one is doing everything I can think of for dolls.
This is the particular one that I've been using:
I just use this
I got this one with these cartridges
You'll need a filter designed to block vapors. I bought this one. https://www.amazon.com/gp/product/B00BT2SWTE/
According to the manufacturer, as long as you can breathe through it, it's working. So you only need to replace it when it's hard to breathe through.
Do you have a Dremel, or other rotary tool?
I guess if I were doing it, I'd start by snipping off the cable (or snip it as short as you want it, if you're aiming to keep some of the cable).
I'd consider checking for any screws or obvious methods for opening it. If there is nothing, that's fine - skip that. If it can be opened, maybe try opening it and see about removing any electronics you can without screwing up it's ability to keep the exterior appearance intact. (Like, if removing innards, makes it impossible for the lens part to sit in place, then maybe just leave things as they are).
Next, I'd take an existing Rainbow High Doll and measure the size of the existing head hole. Then I'd draw a circle on the webcam in that size where I want the hole to go. (Probably aim for drawing it on with something you can remove, or maybe try drawing on it with a pencil.
Using a dremel and some sort of drill-type bit, start by putting a hole in the center of the hole you've drawn.
I recommend getting some bits like this - Carving Bits
Go slow, and aim for keeping your hole -smaller- than the circle you drew.
I have no idea what to expect from the interior of this thing, so there's going to be some improvisation depending on what you encounter.
Try doing some tests as you go, seeing if you can get the neck to fit in the hole at various points to see how things might be working.
Whether or not you'll need to put something on the inside of the webcam is gonna depend on your tests.
When the hole is a size that works, you'll want to sand the edges with sand paper. You'll probably need to take an xacto knife and go along the inside to remove any plastic burrs.
I use this. It's cheap, easy to find, and does a better job imo than elmer's. I have used it to attach ears before and haven't had problems.
I don't remember exactly what it was because I picked it up at walmart without looking, but I have a multicolor yarn that looks something like this that I use for natural hair colors, because there's such a variety. (It's not an exact match) You just cut apart the strands and sort them by color first. It doesn't help with red tones- you'd need to get a separate yarn for that- but it's been really good for blonds and browns. I don't remember it being expensive, but it was like 3 years ago.
She’s a Disney Princess Royal Shimmer Mulan I thrifted! https://www.amazon.com/dp/B0125KU44Y/ref=cm_sw_r_cp_api_glt_i_Q4HE20MV66JY889JD22R She doesn’t have any articulation besides basic leg and shoulder joints, the only pro I think she has over other dolls is that the you don’t have to worry about chipping if you want to change her skin color because of how she was constructed :P Also, you should try some rearticulations! They take awhile but the end result is definitely worth it! The tutorials I could find were very sparse so if you want I can try to go more in depth in how I made my knee joints :)
You need a vapor mask. N95s aren't designed to block gases or vapors. I use this one with these filters.
I did use elmer's glue all for a while, but I switched to this. I use this hair straightener set on 10, and I get decent results. As far as glue, what I do is lay down a line of glue, then set the weft on it and press with the end of a paintbrush. I wouldn't say I brush glue on top of it so much as kind of dab at it so that the fibers are covered. They should dry faster than the elmer's, and afterward I cut the glued part down to a straight edge.
hope that helps
Montana Colors I use this one (it´ s amazon spain link cuz it´ s where I got it from) in both matte and glossy but I think you should be able to get it in other countries too
This is my best guess
https://www.amazon.com/gp/product/B01J124K6W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
it was not this expensive when I got it- prices fluctuate on amazon
If you like enchantimals cartoons and dolls, than this cute app quiz is going to be a great adventure for you. Uncover all the characters and challenge your friends. https://play.google.com/store/apps/details?id=com.vukrudan.girlswithpetscartoonquiz