I had this link bookmarked ages ago and lost it so now that I have come across it I thought a) id share it here and b) use this as a perma bookmark for it too.

http://shape.cs.princeton.edu/search.html

It has about 30,000 3D models on it tho some are outrageously bad a good chunk of them are great and worth the look. Horses and stuff like that are pretty common so getting a 3D model for tokens is a bit easier with some base material.