The cruise line Royal Carribean is following Disney by introducing WOW bands that are RFID enabled. These bands can make purchases and access staterooms. They come in multiple colors as well. This is all part of their new Smart Check-In
http://www.royalcaribbean.com/quantumoftheseas/technology/smart-check-in/
http://www.royalcaribbean.com/quantumoftheseas/technology/smart-check-in/