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My design is a composter. It is to help astronauts decompose their trash. It is to help them save space in the rocket. To use it, you push the food down through the grate into the box. The spikes and the grate will help break up the food into small pieces. In the future, I think you should make it bigger. I hope my composter will help astronauts all around the world save space in their rockets. It would be best if you could print it using clear plastic.
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