OperOnDoxLogo Design Contest Logo Design Contest Contests / OperOnDox OperOnDox has selected their winning logo design. For $375 they received 74 designs from 20 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by yudi Return to Contest Return to Contest Withdrawn Prefers others. #21 Withdrawn Prefers others. #20 Discussion No comments yet.