Found this stuff on an interesting site called "Street Use"
If you are interested in Recycling, Re-Use and/or Hi Tech/ Low Tech or No Tech you will get a kick out of this site.
Chinese Fishing Rafts
These fishing rafts are made from chunks and pieces of styrofoam bundled into nets to form pontoons. The pieces are bigger than foam peanuts, but not much bigger. The rafts are about 12-15 feet in length. Their deck is made of bamboo, covered with mesh.
Sails sewn from used rice sacks found on a boat sailing up the Niger in Mail between Mopti and Timbuktu