Israeli inventor and his cardboard bicycle. Baz Ratner /Reuters /Landov hide caption toggle caption Baz Ratner /Reuters /Landov The Two-Way For About $20, Cardboard Bicycle Could 'Change The World,' Inventor Says October 15, 2012 The materials are plentiful and the process of twisting, shaping and lacquering makes for a frame that's strong and durable, inventor Izhar Gafni says. Mass production is supposed to start in the next few months. See video of a bike in action.