Spoon from Al Capone's Soup Kitchen

Origin
Al Capone was a notorious crime boss and gangster who ran the Chicago Outfit during Prohibition, making money mainly by bootlegging. Although known for being a terror to law enforcement and competing criminals, he did have a charitable side. During the Great Depression, he opened up the city’s first soup kitchen to clean up the streets and give the hungry food to eat.

One night, Lou Barelli, a former gangster and enemy of Capone, walked into the kitchen, unaware of the owner. A gang member saw Lous and decided to make a special bowl of soup for him. Shortly after leaving the soup kitchen, Lou died; autopsy revealed he’d been poisoned.

Effects
Poisons any edible food it contacts, making the person get increasingly sicker over several hours.