An amusement device for enabling a colorful display of one's allegiance to a particular team or entity includes a generally circular hoop member which is provided with a generally cylindrical handle portion, an air-extendable, flexible, fabric sleeve which is hollow throughout having a large opening...http://www.google.es/patents/US4989356?utm_source=gb-gplus-sharePatente US4989356 - Wind sock amusement device
