My Coke Rewards offers a single-day amusement park ticket for 20 My Coke Reward codes. (You will be emailed a redemption code.) That beats our mention from last August, which required 200 My Coke Rewards codes. The participating parks are Cedar Point, Cedar Point's Soak City, Carowinds, Dorney Park, California's Great America, Kings Dominion, Kings Island, Knott's Berry Farm, Soak City - Orange County, Michigan's Adventure, Valleyfair, Wildwater Kingdom or Worlds of Fun. Ticket expires on September 5. Deal ends May 25.
Note that you must've become a My Coke Rewards member by April 14 to redeem this offer.