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$50 fire pit using concrete tree rings
How to make a Cargo Kilt
Altoids Tin iPod Touch Dock
How to build your own iPad case.
How to refill a "disposable" Brita brand water pitcher filter with activated carbon.
turn signal biking jacket
Solar Powered Trike
How to make REAL Japanese ramen from scratch
Protect Your Home with Laserbeams!
Zero Point Shelf
Build a water mortar
How To Weave A Greek Paper "Football"
Make an LED Blaster
Build your own computer
Covert Spy Sunglasses
Build a Greenland Kayak
Chocolate Peppermint Bark
The Stirling Engine, absorb energy from candles, coffee, and more!
Giant Fresnel Lens Deathray: An Experiment in Optics
Cheap secret compartment!
How To Fool a Fingerprint Security System As Easy As ABC
LED Bike Helmet
The Green Helmet (Solar powered, safety lit, weatherproof bike helmet.)