I'm not Australian but I have signed cards from Steve, Lisa, Ray, Georgie, Samara. I don't know how I got them as I never sent letters, I just had an email from Channel 5 one day saying they were on their way. Won them in a competition I don't remember entering ha.
When I met them, I did get another from Steve and one from Lincoln, but I sent them on to my lovely friend because she couldn't meet them with me (pictures > autographs)! The Steve one he gave me was an OLD picture, the one I had sent with the others was a lot newer, and despite having a shirt on, a lot fitter.