JDK Concepts, Inc.Logo Design Contest Logo Design Contest Contests / JDK Concepts, Inc. JDK Concepts, Inc. has selected their winning logo design. For $300 they received 182 designs from 42 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by ongyudicandra Return to Contest Return to Contest Withdrawn 2nd #154 Withdrawn New #155 Discussion No comments yet.