Hang tags are provided for mounting on merchandise in a retail setting. The hang tags include a card with a plurality of edges, with a region of reinforcing material located at or adjacent to the top edge of the card, surrounding an aperture through which a fastener is received. The region defines the shape of a pair of intersecting elongated shapes such as ovals or ellipses, thereby positioning the reinforcing material in the locations where it is most needed to prevent theft-based removal of the tag from the merchandise, while omitting reinforcing material from the locations where it is not needed. Also provided is an attachment device, such as an applicator gun, for substantially simultaneously applying the reinforcing material to the tag and fastening the tag to a piece of merchandise.