Ran across this free item today.

"The worlds first completely free anatomically correct, 3D skull scan. This high resolution 3D capture of this male skull scanned using our 30 camera Agisoft photogrammetry rig . Completely free to download and use as you wish.

The ZIP file contains a ZTool compatible with Zbrush 4R5, if you dont have the latest version of Zbrush you can download the 750k decimated OBJ file."

Not sure how long this will be available, grab it quickly.
AS

http://www.3dscanstore.com/index.php/default/free-samples/free-male-skull-3d-scan.html

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