Apr 5 2011 - Well I took two attempts at this. No sound trigger. No motion trigger. Just praying for perfect timing. The first time I was just a hair early with the shutter release. http://danielmcbride.smugmug.com/Other/Other/16482406_UVbhi#1240395048_KBanF
You can even see the needle begin to puncture the balloon. This one, i was just a hair late. Not a bad picture, but you don't see any of the balloon. I'll have to come back and try again sometime.