With this do it yourself project, you to can have a cool bike that that you can ride around town while towing around a tennis ball launcher. When the urge moves you to fire a couple of tennis balls, either at pedestrians walking by or hopefully at a tennis court, the launcher is placed on a flat surface and the bike secured to it.
Peddling the two wheel bike powers the launcher and while powered up, the cyclist can aim and launch tennis balls.
This do it yourself project is eco-friendly, made entirely from 2 recycled bikes, scrap steel and wood, a 5 gallon water jug and a lacrosse stick. This design was actually an entry in the “innovate or die pedal powered machine contest”. No word on if it won or not, but an interesting entry none the less.
Developers page: Daniel Bauen via hacknmod
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