Pearl O's

Pearl O's are a breakfast cereal Homer imagined.

History
After Bart suggests that they can use Duncan to dive for pearls, Homer daydreams that he was laying on a fanciful bed made of pearls and then, the butler gives him the breakfast, a bowl of Pearl O's, and eats it. Homer reaches for a hand mirror and his teeth have all been broken off into jagged points. Surprisingly, Homer doesn't mind and breaks out into a giggle fit, while in real life, he was rolling laughing on the ground.