My Mars Medical Challenge device is called Zero Gravity Manual Undergarment Washing Machine. The way it works is that you would put socks or underwear through a slot where there would be water and maybe soap already in the washing machine. Once the undergarments are in the washing machine, there is a handle on the side of the washing that you can twist to rotate the clothes in the machine to efficiently wash the undergarments. The Zero Gravity Manual Undergarment Washing Machine helps with medical problems on Mars or in space because in space astronauts generally do not wash their dirty clothes like underwear and socks. This will help eliminate dirty odors in the space shuttle and will improve hygiene and medical problems in space. The material that I would use to create my device would be ABS. The color of the object does not matter.