What is australian hat cork?

The Australian hat with a cork dangling from it is also known as the Akubra hat. It is an iconic piece of Australian fashion and is most commonly worn by farmers, stockmen, and outdoors enthusiasts. The cork that dangles from the hat is a traditional adornment that is believed to keep unwanted insects away from the face and neck. The cork hanging from the hat creates a sound that is meant to deter flies and other flying insects from landing on the wearer's face. While initially a functional item, the cork has now become a symbolic representation of Australian culture and is often included in costumes for international events.