What a flippin' cool article about Israeli cycling enthusiast Izhar Gafni. Izhar took cardboard and shaped it into a bicycle, testing the cardboard to make sure it was sturdy. Then he dipped it in resin to make the bicycle waterproof, painted it, added an electric motor and voila, a bike that only costs $10 in materials to make. How cool is that?! He's patenting the idea and hopefully we'll see these bikes on the market soon.