The former technique uses pre-cut blocks of foam formed with a pair of scissors or other instrument into the shape desired and attaching them to the armature. In the latter technique, the character is sculpted in clay over the armature. This clay sculpture is then replaced with foam by using a plaster mold and injection gun techniques. Finishing techniques described include the making of hair, eyes, eyelids, teeth, horns, nails, and chitius (insect-shell-like) surfaces. The manual also covers the process of creating replacement heads using rubber molds (such as RTV) and urethane castings.
Tom Brierton is an educator, independent filmmaker and stop-motion animator. He lives in Griffith, Indiana.