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This Is Cardboard. Also Entirely Recycled, Water and Fireproof, and Dirt Cheap.
• http://www.commondreams.org, by Abby ZimetAfter four years of tinkering based on the principles of origami, Israeli amateur inventor and bike freak Izhar Gafni has crafted the greenest transportation ever - a $20 bike made of recycled packaging cardboard, with recycled rubber wheels, treated