not a kludge

electricity Hall of Fame neat not a kludge - 5753805312
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Instructables user hanlin_y did the math and realized that alkaline batteries are one of the most expensive forms of power that consumers can use. So he/she/it came up with a solution to power your parts even if they don't come with an AC adapter. With a wall plug, wires, and bamboo strips you can run your electronics off the grid; saving money and the environment at the same time.

bicycle bike not a kludge weld - 5585936896
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Also known at the Sociable, the side-by-side tandem bike has actually been around since the 19th century. Commonly used for courting couples or newlyweds, the bicycle is seeing a resurgence with hackers and DIY enthusiasts. One guide by Instructables user carlitos is a simple weld job consisting of nothing more than an extra seat, pedals, crank and some tubing. I can't think of a more perfect wedding gift.

neat not a kludge stairs - 5437683200
By Unknown
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A cool visual concept. But in every other sense... nope.

~NSHA

altoids flashlight neat not a kludge - 5500263680
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Altoid tin alterations are pretty popular among the hacking community, but this one takes it down in size. Using the Altoids Slim tins, Instructables user Joshua Zimmerman put together these bite-sized LED flashlights for under $5. With just a tiny bit of drilling and soldering, you could easily assemble a handful of these in an hour or two.