I haven't tried it but have seen a lot written about it. An Aussy site had a large article on it. They used doughball or bread flies made from trimmed deer hair, pom-poms, etc.

Here is a Florida Sportsman article on it with an Antron bread fly called a Bisquick Nymph:

[url=http://www.floridasportsman.com/flyfishing/FF_0202_Mullet/index1.html:70c6e]Mullet Musings[/url:70c6e]