Abstract: A key holder arrangement for one or a plurality of spare keys, with which advertising may be effectively used, comprising a planar base member approximately the size of a typical business card, and of a thickness approximating the thickness of a key. The base member has opposing faces thereon, and one or more cutouts therein, each cutout being of a size closely conforming to the key to be received, such that the key can be frictionally retained therein. One of the faces of the base member is coated with a pressure sensitive adhesive, with a backer sheet normally residing on the pressure sensitive adhesive, to prevent the base member from adhering to an extraneous object. The backer sheet is to be readily peeled away from the adhesive preparatory to the placement of the backside of a business card in contact with the adhesive, and in careful alignment with the base member.