Introduction: 130 Decible, Self Powered Airhorn!
This is an Instructable that lends itself rather well to a video. Hear for yourself how loud these things are. Easily made from a couple of pill bottles, a piece of latex or rubber (latex glove, a balloon, or, yes, a condom =),and a rubber band, you can quickly make an ear-ringing airhorn sure to annoy at your favorite sporting event...
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