Wapometal[1] is a special kind of metal discovered by Wapol when he was turning garbage into toys during his cover story, manufactured via his Baku Baku no Mi powers. It was this metal that turned him from a homeless bum into a very wealthy CEO of a toy company. His wapometal toys were so successful, the World Nobles granted him a new kingdom as a reward.[2]
Franky used wapometal for his Iron Pirate Franky Shogun.[3] It is a shape-memory alloy that can be restored to its preconfigured shapes, being used to create merger modes in the components of the Iron Pirate Franky Shogun.
Trivia
Though it isn't stated by name, the Vinsmoke FamilyRaid Suits are also said to be made from a shape-memory alloy, and like the Franky Shogun, have proven to be fire-resistant.
