A chip card comprising a card made from a plastics material capable of elastically withstanding a relative bending and in which a microelectronic data processing chip is encased, a thin microelectronic wafer made from a semiconductor material, such as a finger print sensor, additionally being joined to the card. The engine includes a crank shaft having a rotating mass. The product display system includes a tether for securing the small item and includes space for attaching signage associated with the item.