| 1. |  | Janie Stine, David Jaroch and Jessamine Osborne with their biodegradable toilet paper, Nature's Silk | Purdue University--Students; | Purdue University students, from left, Janie Stine, David Jaroch and Jessamine Osborne created a biodegradable toilet paper, called Nature's Silk, from corn. The product took top prize in the 2009 Indiana... |