Abstract: A display is releasably mounted on the outside of an enclosure. The display may be released from the enclosure upon gaining access to the inside of the latter. In a preferred embodiment, the display is a sign, and the enclosure is a vending machine. The sign includes a rear panel, which is secured to the door of the vending machine, and a front panel which is connected to the rear panel by means of a hinge. A fastener on the front panel, disposed generally opposite the hinge, protrudes through a hole in the rear panel and into an opening in the vending machine door. The relative sizes of the fastener and the hole are such that a portion of the fastener snaps into place on the opposite side of the rear panel.