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Captain Pedantic shows you how to make a pocket-sized water bottle launcher – “There are plenty of bottle rocket plans out there, but I hadn’t seen anyone use a quick release coupler as a launch mechanism before. Plus, all other launchers are so large, it seemed to me all you need is the coupler and a valve. I decided to make two so me and the girl can go to the park and have a shootout (after all, the bike pump is hers).”Link.

Related:

  • Water Bottle Jetpack – Link.
  • Easy to build, easy to use, water bottle launcher! – Link.
  • MAKE VIDEO PODCAST – Soda Bottle Rocket (video) – Link.
  • Join the MAKE Instructables group – Link.

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