http://www.youtube.com/watch?v=px-rhYRfoB4&feature=related
Parts:
Motor 1
Gears 4
Belt 1
Plastic Cases in different size 4
Board 1
Battery 2
Paddles with Clips 18 ( 4 different type)
Flower center plastic piece 4
Estimate cost (manufacturing and shipping) : 3.5 USD ( retail 15, margin 50%, manufacturing margin 50%)