Wow, that sight seven posted is pretty cool. I'd love to do that kind of stuff.
Yeah, there is a "snow creature" head about half way down this page, http://www.tomspinadesigns.com/Sculpture.html
It is right next to a few other Star Wars characters, they don't call it a wampa, obviously they seem to stick to generic names, but it is obviously a wampa, but I think even Ady's wampa with the CG horns looks considerably better than this one. This guy just doesn't quite look right.
Scroll down to the very bottom of the page, and there is a mounted Tauntaun head, LOL, how awesome would it be to have that hanging on the wall in your home! Be quite a conversation piece. If I were a multi millionaire, I'd be commissioning guys like this to build me all sorts of crazy stuff.