Trace the outline of the upper lip onto cardboard and cut it out.
Untwist the coast hanger and bend it into a curve that matches the cardboard piece.
Tape the cardboard to the wire.
Bend the ends of the wire into an "L" shape. Bend the ends of the L into hooks.
Create a chin hold by shaping thin cardboard into a cone and taping it to the base of the jaw piece. Add some of the cosmetic sponges to make it more comfortable.
Sew a length of elastic onto the top of the tuque. Sew a metal ring to both ends of the elastic. We used hardware from an old purse but you could use a key ring like in this Realistic Werewolf Costume instructable.
Have your volunteer put on the mask and adjust the wire until the jaw piece sits comfortably on the chin and moves naturally when he speaks.
Build up the shape on the jaw with paper towel and masking tape. Make two teeth from cones of cardboard and tape them on.
Papier mache and then add clay as you did to the rest of the face.