The annual Windy City Rubber Ducky Derby is today on the Chicago River. Now till 12:30pm, you can adopt a duck for $5 outside the Wrigley Building, 400 N. Michigan Ave., and enjoy the family fest from 10am on. Duck drops begin at 1pm on the river, viewable from the Riverwalk and the Michigan Avenue Bridge. If your duck comes in first, you could win one of a handful of prizes, including vacations and a new Chevy Malibu. Proceeds benefit Special Olympics Illinois.