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. (http://www.instructables.com/id/LED-Throwies/)
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Resources
- How to Make LED Throwies - http://www.wikihow.com/Make-LED-Throwies
- LED Throwies- http://www.instructables.com/id/LED-Throwies/
- Extreme LED Floaties - http://makezine.com/projects/extreme-led-throwies/
LED Throwie Extension projects
- Origami Star LED Throwie: http://www.instructables.com/id/Origami-Star-LED-Throwie/
- Paper Circuitry at Home: Electric Origami: http://www.evilmadscientist.com/2008/paper-circuitry-at-home-electric-origami/