Puppets were designed to be seen only from the waist up, so armatures were created from wood, wire, and brass tubing then epoxied onto a piece of wood that was secured to the set. The puppets were filled out with foam and foam wrap, then painted with liquid latex. Replacement mouth pieces and eyes were created from Sculpey clay for each puppet
The alien bug puppet body was made from foil and covered in lightweight Sculpey clay, then painted with liquid latex to give it a fleshy feel. The puppet evolves throughout the film, so multiple puppets were created to simulate his growth, each with more legs and eyes
