We are up to 36 unique parts made with the ComposiMold-LT reusable mold making material (http://www.compositherm.com/) and still going. I took pictures at 25 unique molds, and I will again when we get to 40. It keeps on going. The first twenty or so were a dog casting. We used polyurethane resin, polyurethane with silica (sand) fillers, polymer clay, and an epoxy. The epoxy we used was a UV curable resin. It was cured by sticking it out in the sun. Since this picture was taking we have started to branch out for some more exciting parts to mold including the turtle, some skelaton heads, and some small figurines.