Yeah, the problem is that if they're technically inclined enough to scan it themselves, they'll probably find a way to cut you out from the printing process too, you know? Hahah...

Umm.. just trying to think. Moedis Lite is a free app for the iPhone that is kind of like David Laserscanner. You might be able to pull decent geometry off that, but again, there's some setup involved.
If you do try it out though, let me know! I'd be interested in finding out what the results are like!