This is an advanced version of the classic "rubberband and pencil slingshot" that you've probably made a million times when bored in class. Watch and see how to make a homemade catapult out of office or school supplies.
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Use a semi automatic Lego gun (S-22)
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Build spinning tops with everyday objects
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Turn 2 Disposable Lighters into a Lightercycle (English Instructions)
Star Wars:
A New Hope LEGO Chess Set
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Construct your own set of plastic armor for medieval reenactment
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Use heat-shrink tubing, shoelaces or urethane belts for pulley systems
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Construct your own replica of a keyblade out of craft foam
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3 Million Brick Lego House - Demolished
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Accurately read a tape measurement
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Dissecting a Frog With LEGOs
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Make a mini K'Nex pistol
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Build a Lego vending machine for any urban model setting
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Build a LEGO stroller
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Make a paper bullet that explodes cotton buds
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Build a spy periscope
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Make a Go Kart
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Replace the blade of a utility knife
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Build a looping rolling marble machine with magnetic elevator
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Make a simple fully automatic rubber band gun
How To:
Use a semi automatic Lego gun (S-22)
How To:
Turn a 5MW laser into a 100MW laser
How To:
Build spinning tops with everyday objects
How To:
Turn 2 Disposable Lighters into a Lightercycle (English Instructions)
Star Wars:
A New Hope LEGO Chess Set
How To:
Construct your own set of plastic armor for medieval reenactment
How To:
Use heat-shrink tubing, shoelaces or urethane belts for pulley systems
How To:
Construct your own replica of a keyblade out of craft foam
News:
3 Million Brick Lego House - Demolished
News:
Dissecting a Frog With LEGOs
How To:
Accurately read a tape measurement
How To:
Make a mini K'Nex pistol
How To:
Build a Lego vending machine for any urban model setting
How To:
Build a LEGO stroller
How To:
Make a paper bullet that explodes cotton buds
How To:
Build a spy periscope
How To:
Make a Go Kart
How To:
Replace the blade of a utility knife
How To:
Build a looping rolling marble machine with magnetic elevator
How To:
Make a simple fully automatic rubber band gun
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