A mounting assembly is provided for securing objects to a substrate in a manner that permits the objects to be removed from the mounting assembly and from the substrate. The mounting assembly includes a planar sheet-like holder with opposite front and rear faces. A repositionable adhesive is applied across the entire rear face of the holder, and the holder is removably disposed on a release liner. A generally U-shaped cut is formed in the holder to define a flap. The flap can be repositionably attached to the object, while remaining portions of the holder can be repositionably secured to a substrate.