columbus tool & supplyLogo Design Contest Logo Design Contest Contests / columbus tool & supply columbus tool & supply has selected their winning logo design. For $350 they received 84 designs from 31 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by Lumon Return to Contest Return to Contest Withdrawn New #65 Discussion Lumon Logo Designer .(This comment references Entry #65) 15 years ago