From www.youtube.com - November 3, 2011 9:23 AM

A quick and dirty tripod dolly. Add rollerblade wheels to a gorillapod with bolts and lock nuts and you're rolling. Jiggles on the Care Bear spin are from the texture of the flloor.

Wheels + bearings: $14
hardware: $2
Total: about $16


http://www.instructables.com/id/Tripod-Dolly/