'The Advanced Art of Stop-Motion Animation': Building Puppets:
Part 3  In the latest excerpt from The Advanced Art of Stop-
Motion Animation, Ken A. Priebe continues his lesson on building
puppets, focusing on silicone and plastic casting.  Buy The
Advanced Art of Stop-Motion Animation by   Foam latex has long
been a popular material for creating the outer skin or entire
body of a stop-motion puppet over its armature. The basic
elements that are needed for a foam latex puppet are the sculpt
(the official term for the original clay sculpture of the
puppet) and a plaster mold formed around the sculpt. The foam
latex goes inside the mold along with the armature and becomes a
cast replica of the sculpt. Foam latex comes as a series of
about five different liquid agents that are mixed together to
gel into a soft, spongy material. Once it is cured by baking it
in a convection oven, it basically behaves like upholstery foam,
which springs back into shape even after touching it. Although
foam latex is stinky and trick