Needs a pumpkin of your choice; plastic is a good choice for mounting eyes and teeth, RGB LED strip.  Additional components; miniMP3 player for Halloween sounds. RGB LED strip eyes will be like a railroad crossing signal.  Teeth RGB LED  strip will go in sequence left to right and back right to left.  MiniMP3 player sound volume will control RGB LED brightness.  WLED  will control color and sequencing.

Trick or Treat Pumpkin code

May need debugging and refinement.  Microsoft Copilot generated code.

William