Who made whoopie cushions?

Whoopie cushions are believed to have been invented in the 1920s by the American toy company JEM Rubber Company. They gained popularity as a practical joke item, often used to create humorous sounds mimicking flatulence. The design typically consists of a rubber or latex pouch that inflates and deflates, creating the signature sound when someone sits on it. Since then, whoopie cushions have become a classic gag gift and are still widely enjoyed today.