A pop-up mechanism for use with a bag so that when operated by a user, a decorative object pops up from a hidden position within the bag to a position clearly in view. A twistable circular band is held within a sleeve at the top of the bag. The band has attached thereto at least one finger tab, and a pivotal post having an end to which the decorative object is attached. When the finger tab is operated, the band twists and thereby pivots the post and the decorative object from the hidden position to the viewable position.