Jaw Top

   Top piece is made from plastic or thin, nice quality plywood from a craft store, same as the side pieces. It is cut to fit between the side pieces and jaw cut-out. It is glued in place 1/8" to 1/4" of an inch below the top of of the side pieces. This gives you some room to sculpt some teeth and possibly a representation of a tongue. You can use some Super Sculpey or possibly some Magic Sculp to sculpt with. Magic Sculp does not have to be baked in an oven.
Jaw Top