Hovis,
If you can find a pic of the Aussie flags you can figure out how to draw your own and then fold them. Pretty much any light weight plastic sheet will work. Don't forget the little pin wheels, like the kids play with. The ones that are attached to a stick and made of sparkley mylar or something like that. With a bit of practice you can make your own, but I like the pinwheels better. $1 each, usually.
Donald