I was looking for fun mini-projects last night over at instructables (I made this Simple Circuit Game today but with a buzzer instead of an LED during lab today – if you’re local stop by and play!) and along the way I discovered a ton of instructions for office toy guns, mostly out of K’Nex. The video on the K’Nex Gatling Gun is really awesome. But then again, K’Nex are awesome. At the least, I want to dig mine out and make a K’Nex iPod dock.