A Spray Bottle That Works in Any Direction

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It's the only spray bottle that works on a roller coaster. Why you would want a spray bottle on a roller coaster, I don't know. I'm not one to judge, though.

World's Quickest Car Wash

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Well... at leas you can't say it's not clean.

You'll Never Need Batteries Again!

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It falls a bit short in the "stealth" department, but you can't have your cake and eat it too, so shut up.