Two-wheel-drive bike, hand-assembled!

Cyber bike

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Homemade fast roller skates started with an electric screwdriver!

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The handsome origami mechanical triangle dart that takes off! It is recommended that boys have one

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I heard that people who walk with their feet turned inside out are cuter.

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real man, no umbrella

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1/3 tire + 1/3 tire + 1/3 tire = 1 tire

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DIY Bike | Airless Tires

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Homemade Shotgun

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[Handiwork] Putting Formula 1 Tires On An Electric Scooter

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[Crafting] New concept bikes without a chain

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New concept unicycle !!!

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The local tyrant sword made by myself... is a bit powerful

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fun magnetic game

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What would be the effect of removing the iron branch in the bicycle tire and replacing it with a sho

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si idol pala to e HAHAHAHAHA

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Build a rubber band machine gun out of corrugated paper and hold up to 120 rubber bands!

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Isn't this a perpetual motion machine?

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From entry to prison

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How powerful can it be to propel a car with carbon dioxide? Plus a crash simulation experiment!

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