Transform from a sleepy ghoul to a social human when you serve up your morning caffeine in this fun Disney The Haunted Mansion color-changing coffee mug. A whimsical message and a graveyard scene with yellow eyes glowing in the dark background always appears on one side of the ceramic cup with a tombstone-shaped handle. When you add hot liquid to the heat-activated mug, the hitchhiking ghosts magically appear on the other side.