Last summer, YouTuber (and former NASA engineer) Mark Rober built the world’s largest NERF gun and terrorized his kids with it. This summer, Rober is getting into water sports, putting his specific brand of engineering to use building himself a custom Super Soaker. Where the original is hand pumped, Rober’s uses nitrogen tanks to propel jets of water, though Rober’s is still just a scaled up version of the original. Gas is still used to pressurized a tank of water and fire a stream at an unfortunate target. He provides plans for building your own, if you’re so inclined, but before you get to work, know a few things about the process. Rober’s a highly trained engineer who knows exactly what he’s doing, so if you are going to build this, find someone with the required engineering experience. Also, the water comes out at 272 miles per hour, so don’t let anyone stand too close to the nozzle. They might lose something important.

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In short, this is a key-shaped multi-tool built of stainless steel that has all of the tools you need for everyday repairs for everything from light switches to bicycles. Bit driver. Protractor. Metric and Imperial rulers. Imperial and Metric closed wrenches. Bottle Opener. File. Scoring tip. Wire bender and bike spoke key. Wire stripper. Screwdrivers. 1/4 hex driver pocket. So you might need to throw in some hex bits for specific projects, but otherwise, the Geekey has you covered for almost all of your everyday repair needs. As if that wasn’t enough, the hexogon can also serve as a smoking bowl, with the shaft of the key hollowed out to serve as a pipe.