I spent some time wit some friends last night shooting some high-speed stuff. We used an audio trigger tethered to three stropbes set at 1/64th power to stop the action. It was a whole bunch of fun. There were a lot of things that fell victim to the firecrackers, but the Legos were my favorite. And, just because I know that someone will ask, I did not take the Legos from my son's collection, these were from my collection.
Images were created using the Canon 1D Mk IV and the Canon 70-200mm f/2.8L IS lens.