A wall-mountable device including a body, a plurality of members extending from the body and defining a substantially cylindrical recess having a substantially annular ridge, and a tack having a post extending from a disc-shaped head, wherein the post is adapted to be inserted into a wall, the disc-shaped head is adapted to be inserted into the substantially cylindrical recess and entrapped by the substantially annular ridge, and the body is removably secured to the tack when the disc-shaped head is entrapped by the substantially annular ridge.