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In some developing countries, individuals have no shoes. However, walking is the only transportation for most of them. But, we found that plastic bottles are easily available in these places. Therefore, we think of combining mineral water bottles and sandals to meet their needs of shoes. We designed a mineral water bottle called Not Only for Thirsty. It makes full use of plastic resources. And the bottles as shoes help these people to avoid the feet worn and pain while walking on the rugged roads. It bring more convenient to their daily activities and prevent various infections between soil and their exposed wounds effectively.