I keep telling myself I'll try this someday, a few bucks, a trip to Bunnings, and probably some hair pulling will be required.
This isnt the only option about for make your own 3d scanner, search the net, remember you have options.
Though I wish I had the bucks for that nifty handheld 3D scanner Weta used for the LOTR Troll.
http://wiki.vislab.usyd.edu.au/moinwiki/LazyScan