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How To: Build a sonic fabric reader

Sonic fabric is a textile woven from 50% cassette tape and 50% polyester thread. This video illustrates how to build a "reader" that will enable the user to listen to the sound embedded in the fabric. This allows you to play non-traditional music from clothing that's made of cassette tapes.

How To: Build a beeping electronic practical joke

Watch as Kipkay from MAKE Magazine shows you how to make something really cool for the office, with parts from RadioShack. One of the original practical jokes is the gravity activated subwoofer simulator, or better known as the Whoopee Cushion. See how to make a high tech prank... the Joke-A-Tron. This electronic prank device will beep and beep to keep your enemies on their toes.

How To: Build a small hydrogen HHO generator

Make your very own hydrogen (and oxygen) generator with a 9V battery, copper wire, and baking soda (or salt). Why? Who knows. Make sure to check your connections. For more information on this hack, including detailed, step-by-step instructions on assembling your own HHO generator, watch this how-to video.

How To: Reverse a cathode-ray picture tube

Reversing the image on a CRT computer monitor can be a great joke to play on your coworker, if you have the time to play a prank like this. If you have a lot of spare time on your hands, and love to see people miserable, then this is perfect for you. This also works with television sets.