HMS Wilton (M1116) was a prototype coastal minesweeper/minehunter for the Royal Navy. She was the first warship in the world to be constructed from glass-reinforced plastic (GRP). Her design was based upon the existing Ton-class minesweepers, and she was fitted with equipment recovered from the scrapped . The use of GRP gave the vessel a low magnetic signature against the threat of magnetic mines. Wilton was unofficially known as HMS Tupperware, HMS Indestructible, and "The Plastic Duck" or "Plastic Pig".