imageA CELEBRATION OF AMAZING CREATIONSAND THE PARTS THAT MADE THEM POSSIBLE.

EXTREME LED THROWIES

Build these cheery, magnetic lights — then make them swim, fly, and defy the weather.

The LED “Throwie” was invented around 2005 as a kind of electronic graffiti. It’s a little LED light with a strong magnet taped to it. They’re fun — you throw them onto metal surfaces and they stick there and stay lit up for days, or even weeks. They’re easy, and people love making them.

Since we first published the LED Throwie project, makers have invented dozens of ways to use them. In this project we show you how to adapt Throwies for extreme weather, add a simple ...

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