With ideas varying from renewable materials composed of agricultural by-products and food waste to magnetic additives and compostable organic layering, five concepts were each awarded $200,000 to enable them to enter a 12-month accelerator program. The goal: develop plastic alternatives. The winners of this Circular Materials Challenge were announced at the World Economic Forum Annual Meeting in Davos. It’s one portion of the Ellen MacArthur Foundation’s Plastics Economy Innovation Prize, which aims to discover ways for reducing the number of plastics that enter the ocean annually. Read more about all five winners at Dezeen.