Mahan & Associates, LLC High Octane Hygiene SystemLogo Design Contest Logo Design Contest Contests / Mahan & Associates, LLC High Octane Hygiene System Mahan & Associates, LLC High Octane Hygiene System has selected their winning logo design. For $375 they received 73 designs from 8 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by Visartes Return to Contest Return to Contest Withdrawn Prefers others. #1 Discussion No comments yet.