I know 3D pans can be expensive. I have quite a few. I look at the local consignment shops, Goodwill and the local flea markets to find 3D pans. I bring them home and clean them really good before I use them. I have the ball pan, the sitting down lamb, the sitting down teddy bear, half football....all I found at flea markets. I've also seen other pan types at flea markets.
I use my ball pan the most. I have used it to make all different types of sports balls, the ends of a large pickle, and a cinderella type carrage.
I know this discussion is a little old but i wanted to add my .02 :). In addition to the sports ball and mini ball, which I use for a lot of stuff, too, I found a 3D Wilton heart pan at a yard sale. It's discontinued and is different than the Sweetheart pan they have now. I paid $2 for it and so far I've used it as a heart (anniversary love birds), a chocolate covered strawberry, and I've carved a baseball glove from it. Pretty good return for my $2 :)