For what ride is Pepper's ghost, an illusion technique, used when the Blue Fairy disappears, leaving a pile of fiber-optic fairy dust on the floor?
Pepper's ghost: Pepper's ghost is an illusion technique used in theatre, amusement parks, museums, television, and concerts. Pepper's ghost:  Examples of the illusion are the Girl-to-Gorilla trick found in old carnival sideshows and the appearance of "Ghosts" at the Haunted Mansion and the "Blue Fairy" in Pinocchio's Daring Journey at the Disneyland park in California. Pinocchio's Daring Journey:  The Pepper's Ghost illusion (used extensively in the Haunted Mansion) is used when the Blue Fairy disappears, leaving a pile of fiber-optic fairy dust on the floor.
i don't know