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For my design, I made a drink holder that will work in a zero-gravity environment called the Space Sipper. It's sperical design is optimal for zero-gravity. It has a straw and a slide-in cover to go with it. The cover slides into a slit in the top of the container to stop any unwanted leaking while it is not in use. I think that the Space Sipper will really help astronauts in 50 years.
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