Abstract: A device for marking the optimal placement of a picture hanging nail, or the like, on a wall when positioning a picture, or similar object, is disclosed. The inventive device includes a magnetic marking tip for use with smaller picture hanging hardware such as sawtooth hangers, D-rings, triangle hangers and other metal hangers, and a wire adapter device for providing tension on cord based hanger, as typically found on larger picture frames and mirrors. The marking tip attaches to the wire adapter, and comprises a magnet with a coaxially-aligned marker and a projecting tip attached to the opposite sides of the magnet.