That could just do the trick. Thanks for sharing the link!
Did a little sanding, cut the bottom off the foam ball and it's starting to look like something. Found the perfect sized cardboard tube at work for the neck, and it's sized enough to allow a piece for all three heads...yay. The plan is to start the mache, and add the neck and teeth to this one by the end of the weekend.
TODAY I LEARNED:
Dry paperclay sands extremely smooth...and I mean featureless if you wanted to take it that far. Sculpting it takes some very sharp tools though, while oddly enough I could dent it with my fingernail??? Go figure.