A cover is releasably secured over an opening by an apparatus or a fastener system and may be used in a book-clock system having a clock movement housed within a space hollowed through the book's pages. A clock shaft protruding from the movement passes through an opening in a fastening element and then through a hole in the book's front cover. The clock shaft supports and moves the clock hands on the front. The fastening element may be a flexible strip. It may be positioned in a U-shape about the clock movement so at least a ferromagnetic part of the fastening element is adjacent to portion of the clock movement facing the back cover. A magnet is positioned on the back cover so when closed, the magnet meets the ferromagnetic part of the fastening element. A magnetic force is exerted and releasably holds the back cover of the book closed.

A decorative object and a method of hanging the same on a support surface without tools. The object includes a body having a front wall and a rear wall and a hanging member for mounting the object on the support surface is provided, where the hanging member is integral with the rear wall. The hanging member comprises a body having a shaft and a tip. The rear wall of the object is molded and the shaft and tip are molded as part of the rear wall. In other instances, the hanging member includes a base and the base is positioned to be enveloped by molding material when the rear wall is fabricated. In other instances, the base is snap-fittingly installed into a recessed region of the rear wall and is able to be pivoted between a use position and a non-use position.