What's an LED Throwie? Watch this video and find out how to light up your neighborhood using colorful LED's and magnets! Yet another great idea for creating neighborhood art from Graffiti Research Lab.
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.