Stupid invention: the self-playing harmonica

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player harmonica
The aptly named Stupid Inventions brings us a fun little diversion: the self-playing harmonica. Using nothing more than an inkjet printer, a vacvuum cleaner, and a harmonica, you can create a modern day Nickelodeon! Except, of course, it’s a harmonica, and not a piano. But still!

Complete instructions are over at Instructables. should you want to make one of these yourself. My only complaint is that the noise of the vacuum cleaner drowns out the sweet sounds of the harmonica. Surely one of our clever CrunchGear readers can improve upon this design?

And if anyone wants to one-up the Stupid Inventions crew, may I suggest rigging a kazoo up to a CPU fan?

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