There's pumpkin Bulbasaur and witch hat Charmander, but no Halloween Squirtle. I saw a cute drawing of a Halloween themed Squirtle with a skull shell and had to try and make it, so enjoy!
Currently I have yet to print this, but it looks like it would need supports. I'll update with pictures and any issues I run into.
Happy Halloween!
**Edit: Printed just fine with minimal supports touching build plate.
SquirtleHalloweenSkullv1.stl |