Once the metal armature was completed, I experimented with Epoxy Sculpt and Epoxy Clay, both come from Aves Studio, LLC. I ended up liking Epoxy Clay better than the Epoxy Sculpt because it really feels like polymer clay (good ole Sculpey), BUT you do not have to bake it!!!! The Epoxy Clay has a work up time of about 2 hours, which is plenty long enough for making "bones." What I really wanted to do with the Epoxy Clay was to bulk up some areas like the hips and skull; and also to protect the ball-bearing joints from the wool fibers to come. Small Dog looks a little freaky at the moment, but once the needle-felting is applied I think that he starts to take on a personality.