Abstract: A substantially doughnut-shaped insert which will fit into any conventional golf cup to display an advertisement which is visible to a golfer when putting or when retrieving the golf ball from the hole.

Abstract: A golf cup advertising device and method of assembly is provided. The device includes a golf cup unit having an axis, an insert disc for mounting within the golf cup unit at the bottom thereof and twist-on connection means for attaching the disc to the cup unit. The advertisement is printed on an upper face of the disc for viewing by a golfer or other person, after the flag is removed from the hole. The cup unit includes a cylindrical outer wall, which has an inner ledge, a tubular inner wall, and a plurality of ribs which connect the tubular inner wall to the cylindrical outer wall. The upper surface of the ribs and ledge having an angle of inclination sloping downwardly toward the center thereof. The disc has a lower surface with an angle of inclination which is slightly less than a rib surface angle, so that the disc can bear on the ledge before its assembly to the cup unit. The disc has a radially inner portion having a cylindrical inner surface.