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Test Tube Flower Vase
How to Make a Solar Powered Walkway
How to save 11,644.07 on a designer lighting fixture!
Table Top Aquarium
How to install a "garage door open" indicator
Bottle Cap Table with Poured Resin Surface
Charlieplexed row of LED lights, for the Arduino
The Word Clock - Arduino version
Arduino RFID Door Lock
Sponge + Ferric Chloride Method -- Etch PCBs in One Minute!
How I built a Solar iPhone Charger for under $50.