instructables: 3-D Laser Scanner

Create your own super hi-tech 3-D laser scanner. Using just a laser pointer,
wine glass, rotating platform, and a digital video camera, you can make
accurate 3-D models of an object or person.

http://www.instructables.com/id/3-D-Laser-Scanner/

3D Laser Scanners

DAVID-Laserscanner 2.0 (free)
Incredibly Low-Cost 3D Scanner for Everyone...
http://www.david-laserscanner.com/

TriAngles 3D Scanner ($300)
http://www.intricad.com/