There's nothing more satisfying that hearing the shocked yowls of pain that a co-worker lets out when you peg them with hundreds of projectiles in a matter of seconds. They might protest, saying you called them in saying you had something important to tell them and now they can't trust you. But hey, if you can't take a joke you shouldn't be working with a hilarious jokester like yourself, am I right?

The AirSoft Project 2.0 will blast out 1,500 rounds per minute of pure prankster punishment, teaching your co-workers, kids, and pets to stay the hell away from the crazyperson that has unfortunately gotten involved in their lives somehow. This is a purely DIY affair, fortunately, so you can't just run out and buy one at Wal-Mart on a whim and torture people with it until you put in a lot of effort. But hey, if you're crazy enough to build it you're probably crazy enough to use it on a regular basis. Just stay away from me, will ya? — Adam Frucci

InventGeek, via Engadget