A removable hanging device configured to be retained within one of a lattice fence and a chain-link fence is disclosed, wherein the hanging device includes a retaining element having a substantially square cross-section configured to be received in a square opening formed in a fence, a hanger body configured to allow an article to be supported thereby, and a shaft connecting the retaining element to the hanger body. The retaining element is aligned with and extended through the square opening of the fence prior to being rotated to orient a top surface of the hanger body parallel to a ground surface. The rotation of the hanging device causes the retaining element to be oriented at 45° with respect to the square opening, causing the retaining element to be secured within the fence as the retaining element is unable to be removed from the square opening without first rotating the hanging device.