Sugru is a self-setting rubber. You open a Sugru packet to find something that resembles play-dough. You mold the Sugru with your hands, which can bond to almost anything. Overnight it turns into a strong, flexible silicone rubber. For camping, people have used it to fix their tents, sleeping pads, mattresses, boots and zippers. Campers have also used it to insulate metal handles on camp cookware. The possibilities of what you can fix is only limited by your imagination.