DescriptionMardi Gras Doubloons are Mardi Gras throws shaped like coins that commemorate various Mardi Gras Krewes. They are typically made of aluminum and are thrown from floats in carnival parades. The first doubloons used as throws from parades of Mardi Gras Krewes date to 1960, and these early doubloons are collectible but no real value, maybe more if you have a full collection.