On your marks - set - qack quack - squeak squeak. 6,500 yellow rubber ducks racing down a river. Some 6,500 rubber duckies race down a river outside Karlsruhe, Germany, during Sunday's "Das Fest." More than 350,000 people attended the open-air festival "Das Fest" in Karlsruhe, Germany, on Sunday, where they watched rubber duckies race their little rubber hearts out for a good cause. The annual Rubber Duck Race is held to benefit the Karlsruhe Association for the Help of Mentally Ill... Full Story