Ever Heard Of Something Like This?

[🪦 frosty ●]

Hello bud, i use this stuff polymorph plastic, comes in little pellets you put into hot water and shape into whatever you want, should work great, you would have to glue it in, superglue or dabs of hot glue would work, (not to much of it obviously,)
item number on ebay
120018788085
I use it for teeth, and linkages for animatronics etc, good strong stuff