Hamburger earmuffs

The Hamburger Earmuffs were a pair of earmuffs invented by Professor Frink. Frink said that you could mix any two things together to make an invention so Homer said Hamburger earmuffs. Frink had already made these and said that they would soon be on the shelves, "while he (Homer) was still tinkering with the 'pickle matrix' ".

Appearances

• Episode – "The Wizard of Evergreen Terrace"