In Pictures: 14 cool, but off-beat inventions

Lots of inventions are not the iPad, but they are still cool, sort of

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President Barack Obama reacts as Joey Hudy of Phoenix launches a marshmallow from his Extreme Marshmallow Cannon in the State Dining Room of the White House during the second White House Science Fair in Washington February.

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In Pictures: 14 cool, but off-beat inventions

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