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Question:

Has a solar-powered coffee cup been invented?

My school project is to invent something that has NEVER been inventedI actually had a legitimate idea but I have this feeling it has already been takenIf it has been invented, what are some simple school-project style inventions I could make?

Answer:

a football jersey that changes color to let you know if the player is getting overheated personal solar powered hat fan personal hat fan that is powered by plastic tubing attached to a squeeze ball pump paper towel dispenser with a floor mounted, foot operated activator [for those times in the garage/kitchen when you need to wipe your hands quickly] white aluminum foil - it would look a lot better on windows than the regular stuff

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