High Tech-Graffiti im Jahr 2006:

led-graffiti.jpg

LED Graffiti 2

Und so funktioniert es:

LED Throwies are an inexpensive way to add color to any ferromagnetic surface in your neighborhood. A Throwie consists of a lithium battery, a 10mm diffused LED and a rare-earth magnet taped together. Throw it up high and in quantity to impress your friends and city officials.

Videos von LED Throwies und weitere Informationen gibt es beim Graffiti Research Lab:

LED Throwies
LED Throwies II

Wer die Dinger nachbauen möchte, findet bei Flickr eine Step by Step-Anleitung: LED Throwies with On/Off Tab How-To