Casey Holliday, a paleontologist and functional morphologist out at Marshall University, and Nick Gardner, an undergraduate at Marshall and owner of "why I hate theropods" (possibly my favorite title for a paleontology blog ever), have started posting a collection of virtual skulls.
These guys did a whole bunch of reconstructions of lizard skulls from CT scan data, and the recons are downloadable as 3D PDFs or VRML files. Check it out - it's a great way to get an appreciation for the diversity of cranial form in this group! And, look for more to come in the future.
Marshall University also has a nice article on the project.
Note: Keep an eye on Nick's blog in the coming days for more on the project.