Capturing a great shot is enough for most photographers, but Edward Horsford ups the ante by making his own sound trigger. His series of photos featuring bursting balloons was taken using his trusty SLR camera, strobe lights, a rusty stick (for popping the balloons), and a sound trigger he made himself. He studied industrial design and works for Onzo, an energy company. He may categorize himself as a hobbyist, but his work would put most professionals to shame.
Check out his website.