LED Throwies is a project originally designed by the original
Graffiti Research Lab
cell in New York, and something that quickly went viral in attention,
and more excitingly, modification.
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."
As part of my time with GRL Germany we did several events with them.