Blue Thumb Pool ServiceLogo Design Contest Logo Design Contest Contests / Blue Thumb Pool Service Blue Thumb Pool Service has selected their winning logo design. For $275 they received 46 designs from 17 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by BusinessBuilders Return to Contest Return to Contest Withdrawn New #11 Withdrawn New #10 Discussion No comments yet.