Abstract: A wristband is specifically constructed for use in amusement parks having amusement rides or exhibits on or at which human patrons are likely to have the exteriors of their bodies come into contact with chemically treated water, to facilitate purchase of goods or services. The wristband includes a strip of waterproof paper which is tear resistant but will tear completely if subjected to a force which would jeopardize the safety of the wearer in an amusement park environment. Bar coding (e.g. base thirty-six) indicia is imaged on a first face of the strip, and a protective coating (e.g. clear varnish and a transparent matte laminate) is provided over the bar code indicia protecting it from chemically treated water. Aggressive permanent pressure sensitive adhesive is provided at a slitted first end of the strip for securely attaching the ends together so that if they are detached they are not effectively reattachable, and the detachment is clearly visible to the naked human eye.