Propane Bottle / Tank Shaped Indoor Magnets 30 Mil in an attractive way and impress people right from their first purchase. Give away these custom miscellaneous magnets as a complimentary gift for all first-time customers and potential users, thus creating a connection with them. Order our customizable magnets with 30 Mil thicknesses now and enjoy our free full-color printing, free digital design assistance and free digital proofs.