Creative high-speed shots?

I'm looking for some inspiration for some creative high speed photography shots. Most of what I end up coming across is water drops or things BB Gun bullets exploding something. Anyone have any other types of creative high speed photography shots they've done or have come across?

I saw a guy with a high speed camera shoot an antique piano's mechanical action, to see how the wood parts bend during normal use. I enjoyed the sense that things having been just put into motion can be captured in a unique way with high speed.