This wave features billiard balls swinging from different lengths. They each hypnotically swing in their own little arc, making wonderful waves patterns together to the sounds of Moonlight Sonota. See a couple more of videos that show what this looks like from the side at mental_floss. Link
Tokyoflash Treasure Hunt - Win a Tokyoflash Watch of Your Choice!
Going on right now: Tokyoflash Treasure Hunt #26. Win a Tokyoflash watch and neat stuff from the NeatoShop. It's fun and easy to play: Link