Alain, If you've seen the movie CROCODILE DUNDEE, you've seen and heard one. It is a flat piece of wood, usually elliptical suspended on a string. When you spin one it begins to tumble and make a buzzing sound. They are a very ancient and worldwide object. They are most often associated with the Aussie native peoples, but have been noted in many others. The ancient Druids of Europe were known to swing them to bring rain. They make a expedient signal in open areas. The Aussie 'Abos' used them to warn women away from restricted male ceremonies. My use has had the opposite effect, having met several charming ladies curious about them <img src="images/graemlins/grin.gif" alt="" />