My friend brought this to my attention, but I got the description off How to Make a Taser From a Disposable Camera | eHow.com
First, you need a disposable camera, second remove the plastic covering. Screw off the cover with a screwdriver, then take out the circuit board (be careful you don't want to tase yourself). Solder two 16-Gauge wires and connect to the board connecting the flash bulb to the circuit board. Place the Circuit Board back inside the Camera and close it LEAVING the two added wires sticking out. You can charge it by holding the flash button, you can discharge it by putting the two wires on the target and pressing the take picture button.
Yes, it's THAT easy, now all my friends are afraid of me
EDIT: you need a disposable camera with flash, and use it carefully it can kill someone with a weak heart, or a pace maker so be very VERY careful with it