Alex DePew
Señor Schmarty Pants
Saw it on Gizmodo. Actually more of a square than a ring, but looks like it should do the trick for an on cam light. Linked to the actual DIY project below. I may try and create one.
http://www.instructables.com/id/ETJH2J0F2ZML3BM/?ALLSTEPS
http://www.instructables.com/id/ETJH2J0F2ZML3BM/?ALLSTEPS