One or more overhead cranes are provided. Each game medium renting machine comprises a holding case for accommodating bills and a motor for providing the thrust to discharge bills accommodated inside the holding case. The customer deployment can be implemented using a single proxy or a plurality of proxies. The core body and the shell layer are chemically bonded to each other. The chin strap is positioned underneath the wearer’s chin. The device includes a receiver for receiving an incoming call and a processor in communication with the receiver.