Our friends over at DIY Live have come up with a top 10 list of Disposable Camera Mods, my favorite is the mini rail gun mod.
” This is a fun and non-dangeros project for those people who like to throw projectiles magnetically. It simply works by placing a ferromagnetic projectile at one end of a coil and pulsing some power in it. The trick is to switch off power when the projectile is at the middle of the coil, there are some ways to do it but it isn’t important now. The second trick is to use a coil as close as possible to projectile to maximize coupling and the third to avoid saturation, that means keeping the current not to high.”