How-To: LEDs Inside Sea Urchins

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These LED sea urchins would make great party decor or even night lights! Evil Mad Scientist Laboratories shows us how to wire up this super-simple (two parts!) circuit.


Limpet Shell Electronics

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Becky Stern is a Content Creator at Autodesk/Instructables, and part time faculty at New York’s School of Visual Arts Products of Design grad program. Making and sharing are her two biggest passions, and she's created hundreds of free online DIY tutorials and videos, mostly about technology and its intersection with crafts. Find her @bekathwia on YouTube/Twitter/Instagram.

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