Mammoth Maintenance LLCLogo Design Contest Logo Design Contest Contests / Mammoth Maintenance LLC Mammoth Maintenance LLC has selected their winning logo design. For $275 they received 154 designs from 26 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by LvD Return to Contest Return to Contest Withdrawn 6th #132 Discussion No comments yet.