An aborigine gave me this boomerang today. It's more ornimental than a huntilng boomerang, and shows Goanna and her baby following a river from the mountains to a large lake with a billabong to the North East. This will go with my set of hunting spears and woomera. They don't have any decoration. It would be like a mechanic decorating the spanners.
The mountains are the black and red stripes at the bottom. The lake is the circle and the billabong is the horse-shoe shape near the lake. Another river flows in from some mountains on the other side of the lake.