Rockstar Sealing SystemsLogo Design Contest Logo Design Contest Contests / Rockstar Sealing Systems Rockstar Sealing Systems has selected their winning logo design. For $275 they received 64 designs from 22 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by grafixsphere Return to Contest Return to Contest Withdrawn Prefers others. #19 Withdrawn Prefers others. #18 Discussion No comments yet.