I can only imagine a bird dropped it.
I've googled and the nearest thing I can find to it is a 'Snake Pipefish' (google image it for your view).
Only thing against that is they are more in the North than the South.
Maybe someone can help?
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![Image](http://i224.photobucket.com/albums/dd246/downthelane/vic-snake_zps6b518a30.jpg)
Thanks, Richard