In 2015, the city of Cartagena de Indias, Colombia, recorded the Guinness Book of World Records’ largest shrimp cocktail, weighing in at just over 2,910 pounds, but that record may not stand for much longer. At Civic Center Park on Sunday, August 7, the team behind Playero Fest will attempt to beat it with a shrimp cocktail weighing 3,520 pounds — and attendees can take home a piece of the action.…