I made a "Gearbox of Happiness" gag gift. Free plans on my website
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Joined Feb 21, '19 

This is an amazing teaching tool, not to mention hilarious. People have spent hours cranking this gearbox convinced they are making a difference. They are, but on a very small scale.

Check out this site for full DIY. Easy to make:



If you make one please send me pictures

Hundreds of ideas brought to life
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