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Homemade banjo ukulele
How to Make a Bass Pickup
Make A Guitar Pickup
Be an Aeronautical Scientist: Make your Own Jet Engine for a few Pennies.
Home made DIY Grey water system water recycling.
Jet Engine Made Out Of Empty Beer Cans!
Office Booby trap
The Office supplies trebuchet
Trebuchet of the large variety (a work in progress), 4.28.07 update
The Stirling Engine, absorb energy from candles, coffee, and more!
How to power your bike with a whippersnipper motor
Create a hardware store jet engine!