|EL wire = Electroluminescent wire. Like glow sticks, only better!|
Hook it up to a little battery pack with a switch and imagine the possibilities!
I picked up a white 10-foot set with the techno strobe switch (it has three settings: on, off, and strobe).
The wire itself comes in lots of colors, can be cut to any length, and now there is even EL tape (like a wider tape strip instead of a wire).
This stuff a little hard to find since it's a relatively new product on the market. Fortunately I found a guy in Seattle who sells it. He said he'll be at Norwescon next Spring too. It sounds like a lot of people are using this stuff for costumes (and Norwescon is all about the costumes).
Check it out: http://seattlelumin.com/