Sustainable crops such as hemp and bamboo along with recycled plastics and bio-based polymers could be used to create a durable and attractive composite material suitable for mass manufacturing.
Originally a Chair Desig by German designer Daniel Heer, original image from: http://www.blackbathroom.net/one-of-a-kind-modern-day-furnishings-style-ideas-keil-stool-from-daniel-heer/395.html