Discarded chewing gum litters streets all over the world. But we could turn it into something useful. Gumdrop collects chewed gum and processses it into Gum-tec®, a recyclable compound that can be used to make new products, such as the soles of these Stan Smith shoes from German sportswear company adidas. Other products from Gumdrop include pencils, coffee mugs and frisbees.

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