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Perpetual Swing Thing Machine

How to Start a Fire With a Frankenstein Lemon

Guy Made Bow and Arrows with His Bare Hands

Full Auto Coke Bottle Arrow Gatling Gun

How to Make a Snowball Machine Gun

Chinese Stick Method Solves Large Multiplication Problems with Ease

How to Quickly Defrost Your Windshield

Dinner Fork Door Lock

How To Make A $400 Book Entirely From Scratch

How to Quickly Test Your Batteries

We’ve Been Using Ketchup Cups Wrong

This Tool Slices and Dices Vegetables Perfectly

Populate Your Home with Little Sock Snowmen

See the Mother of All Multicopters in Action

Mad Genius Invents Bed That Ejects You When It’s Time to Wake Up