text: what is the name of the tool the australian aborigines used for communicaton? i understand that australian aborigines used a tool crafted from a flat piece of wood and attached to long strings.  when swung in circles through the air it sent out loud vibrations and was used as a form of long distance communication.  does anyone know what it was called? i live in the centre of australia...i dont know what the arunta name for them are but we refer to them as bull roarers...also known as the bush telephone