I was thinking Liquid Glass Thinking Putty.
That way, there’s still bubbles, but it’s easier to remove the figure from.
As far as distractions for your hands, I came across this “Thinking Putty” on Amazon. Guess it’s a best-seller, and it comes in pretty colors! I used to play with Silly Putty a lot as a kid, right around the time my Trich manifested, so I might try this stuff out. :)
Crazy Aaron's Thinking Putty, 3.2 Ounce, Liquid Glass https://www.amazon.com/dp/B004L13EXE/ref=cm_sw_r_cp_api_4e7wAb3HJ4TDE
Liquid Glass Putty looks pretty awesome.
I'd probably eventually add some glow powder to it so it really glows in the dark.
i have a wierd thing i found on amazon
https://www.amazon.com/dp/B004L13EXE/ref=twister_B079P4VCLX?_encoding=UTF8&th=1