This is one of four, Disney California Adventure, Animation Character Dangle Pins, from the Off the Pages store in the park. This is a 3D Pin of Donald with one of Walt's quotes underneath that reads "Happiness is a state of mind. It's just according to the way you look at things." The Dangle has Disney's California Adventure.
This pin is layered and measures 2.4 inches tall.
Released 2001 and on original card.