A hand-drawn cartoon ghost with two round eyes, an oval mouth with the words "boo" inside, and dotted lines indicating movement or sound waves. There is text to the right of the ghost that reads "BOO!" in a playful, curved font.
Simple black and white drawing of a ghost with two oval eyes and a round open mouth.
A simple, hand-drawn doodle of a ghost with large round eyes and a small open mouth, waving with one arm.