some cool stuff at the Smithsonian

WendyLuvsCatz

http://3d.si.edu/download-browser

a fair few restictions but the mammoth bones are very cool

WendyLuvsCatz

grab the 1/35 scale mammoth, others ways too big
Carrara Octane render

http://www.si.edu/termsofuse

StratDragon

I downloaded Abe Lincon and damned if he doesn't look like Bill Murry

Cool link, thanks!