This young maker built a pneumatic-powered Lego version of the Most Useless Machine.
Here’s another take on a Lego-based Useless Machine that we posted about earlier.
More:
The Most Useless Machine (Complete build instructions on Make: Projects)
Mark on The Colbert Report (video)
From the pages of MAKE Volume 23:
MAKE Volume 23, Gadgets

This special issue is devoted to machines that do delightful and surprising things. In it, we show you how to make a miniature electronic Whac-a-Mole arcade game, a tiny but mighty see-through audio amp, a magic mirror that contains an animated soothsayer, a self-balancing one-wheeled Gyrocar, and the Most Useless Machine (as seen on The Colbert Report!). Plus we go behind the scenes and show you how Intellectual Ventures made their incredible laser targeting mosquito zapper — yes, it’s real, and you wish you had one for your patio barbecue. All this and much, much more.
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