There was this one time I was playing basketball, and I went up to dunk, and I actually flew. Dude, I flew. I was airborne for, like, 10 seconds at least. Don't believe me? Well, if I had my Hangtimer stopwatch at the time, I could totally prove it.

The Hangtimer uses a built-in tri-axis accelerometer to measure exactly how long your hangtime is. Whether you're on a board, slope, bike or trampoline, the durable stopwatch will settle any bets over who can stay in the air longest. It's a tad on the pricey side ($107 with shipping), but considering it uses the same technology NASA puts in its spaceships, that's probably a bargain. Just remember to load it up with a pair of AAA batteries before you take it on any sweet jumps. — Peter Pachal

Hangtimer, via Product Dose