Spirulina Growth Kit

You don’t have to depend on commercial growers or expensive powders to get your spirulina fix. With this kit, you can have it fresh and alive, anytime. I made a few modifications to help mine grow faster and prevent clogging, like replacing the intake line with rubber tubing and swapping... Read more »

Karakuri Somersault Doll

Employing a centuries-old secret technique from the Edo period, this kit has everything needed to create an acrobatic doll, plus a festive kimono and a tiered pedestal on which to perform. You can even adjust the velocity of the doll’s action. The instructions are in Japanese with beautiful illustrations that make it easy... Read more »

Electric Plane Launcher

This kit’s great for office warfare but it’s really meant for flight-testing paper airplanes. Two DC motors spin rubber discs in opposite directions to grab your plane and propel it up to 30mph. There’s no soldering, just pre-cut wires and a screw terminal block. Intended for teaching kids ages 14 and... Read more »

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