see the LED Throwie - Instant Messanger Tube in action at http://abehman.com
Now, I can t take all the credit here
The LED Throwie
"Led Throwies (An LED throwie is a small LED attached to a coin battery and a rare earth magnet , used for the purpose of creating non-destructive graffiti and light displays.) were devised by James Powderly and Evan Roth working together at the Graffiti Research Lab during a fellowship at Eyebeam OpenLab in 2006. The technology, like everything from the OpenLab, is open source and in the public domain. LED Throwies were designed as a new kind of graffiti art to be used on ferromagnetic surfaces like steel. Part of GRL's original campaign involved distributing throwies to a group of people, who were then encouraged to throw them onto a metal sculpture called Alamo, located at Astor Place, Manhattan, New York City."
Step 1: What You Need!
- 10mm Super Bright LED (preferably diffused)
- CR2032 3V Lithium Batteries
- Rare Earth Magnet
- Transparency Film
- 8.5 x 11 Paper (with your message)
Step 2: Make the LED Throwie
Grab your LED (if you don't have a diffused LED you can easily fake it by using some sand paper to scratch the plastic and make it diffused), Battery, Magnet and Tape.
What you want to do is put the battery between the two legs(leads) of the LED. Be sure to have the longer leg on the +(positive) side of the battery. Next. Take a strip of tape and wrap it around the LED leads and battery to secure them together.
Next, take another piece of tape and secure the magnet to one side of the LED and battery.
Voualah- you have made an LED Throwie.