Silver duct tape, most useful thing in the world.
Need a strong, flexible, and sticky tape? Duct tape comes to the rescue! Duct tape was first used in the Second World War, where soldiers used it to seal ammunition boxes. They quickly began using tape to provide a quick, temporary fix for guns, vehicles, and even airplanes. Since then duct tape has been used just about everywhere, from NASA missions to artistic creativity and even to remove warts.
Sold in virtually every hardware store.
- Compound Structures