Here's another skull from around our house.
No lables other than 2 n's seperated by an ankh on the side.
Scanned with the MakerBot Digitizer Desktop 3D Scanner
This is a 2 part container used as our candy jar. first scanned with the top on. then seperated and scanned multipul times with just the top and then just the bottom.
Have fun, not sure their is any internal geomatry or not.
My friend from 3DWP here on thingiverse was kind enough to help me fix my model and make it solid. I have added the new file as well.