Try eBay. I just found a place in Penrith selling them on eBay 10 for $20 = $2 each and that includes postage.
You could make your own. It is just a piece of wire coiled at one end and then bent into shape. The hardest part would be soldering or welding an eye at the other end.
But at $2 each, I would just buy the 10 pack. If you are only beach fishing you will almost never lose one
itsaboat mate...Life is just a boat and then ya marry one !