Eoraptor Skull
Digimorph provides STL files for some of their fossil scans (http://www.digimorph.org/resources/STLs.phtml), but not all.
In this case of the latter, the specimen is a Eoraptor skull (http://www.digimorph.org/specimens/Eoraptor_lunensis), so to share its beauty I reconstructed this model from their CT scan video frames.