knife that can cut itself

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a boomerang that doesn't come back

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plant grower made with salt

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silent music documentaries (unless it's a music documentry about One Direction, then actually it would be a great invention)

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Sugar free sugar

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A car that uses molten gold for fuel instead of gasoline.

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porn subtitles

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American Idol on DVD

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a TV with no screen

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a helicopter without propellers

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Everything except Mnt Dew, Doritos, and pizza

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Religions

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A lightbulb, that only shines on things worth looking at!

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A pen sharpener :)

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Blind guide dogs

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A hair dryer for drying your fire.

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Banana peeler

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Striped paint.

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Flavored toilet paper

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Sunglasses without lenses.

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Harry styles

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water man

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Redux: A time machine that takes two hours to activate and sends you one hour back in time. C-C-C-C-COMBO Moral:!!!!

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Womens' opinions

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Pointless Inventions

Sometimes an invention is so useless it's almost hilarious. Check out these pointless inventions and create your own!