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Eco bottle caps double as Lego blocks

Bottle caps typically serve a humble purpose and aren’t really thought of as the most practical invention ever — instead, they contribute to more than USD 1 billion worth of plastic waste that ends up in US landfills each year, rather than being recycled. While in the past we have seen initiatives turn them into mini indoor gardens, a new scheme called Clever Caps has redesigned them to give them extra use as Lego-style bricks after they’ve finished their life as a bottle cap.