The 150-year old mechanical music creator, Reuge, has unveiled its brilliant Butterfly project which features two singing birds with real bird feathers. Each bird sings a different song and has a customised 72 notes movement. While in action, there will be a little white gold butterfly moving in sync to the melodies. This creation was custom ordered by a father for his daughter who is very fond of butterflies. How touching! The music box costs $48,270.