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How to Make PVC Pipe Dog Enrichment Toys
Treat-dispensing Origami Cat Toy
$50 Drum Carder (for combing fibers)
Grow Your Own Musical Instrument - an environmentally-sustainable conch-substitute.
A Rule Organ
Durable (and easy!) Duct Tape Wallet
quality duct tape wallet
Propeller-Powered Zipline Racers
Touch Stylus for iPod Touch/iPhone, any generation
Small-scale wave-power - free energy from the beach!
A Swing Set that Generates Electricity
Easter Egg Anemometer (Wind Speed Meter)
The easiest bookmark ever in 30 seconds!
Make a cheap 3$ Projector
Hand powered vintage propeller toy.
Transform a ballpoint pen into a survival whistle mini-pen
10 Uses for Your Old Toothbrush
Thirty Unusual Uses for Aluminum Foil
12 Volt Battery Hack! You'll be Surprised...
WIFI Antenna Hack!
Create the Ultimate Noise Cancelling Earphones
How To Play The Harmonica