Spain-based french designer Sébastien Cordoleani has developed ‘Roll Lamp’, a collection of pendant lights made from a single strand of cork. To create the lamps, a thin and long pre-glued section of cork is rolled into different forms around the base of the light – a process which has no material wasted during production since no mould is needed. ‘Roll lamp’ combines the mentality of industrial design with the craft of hand-making the final product.

http://www.designboom.com/weblog/cat/8/view/19797/sebastien-cordoleani-roll-lamp.html