My Mum and Step Dad did this Nicky. They hired out a gorgeous place right on Albert Park and they said it was their engagement party but only a few people knew what was happening. So Mum and my Step Dad carried on with the night as usual and then about an hour into it we disappeared and go changed. I was flowergirl, my Aunty was Maid of Honour so we helped Mum into her dress and then out we went. People were expecting speeches to be taking place, not us walking out with my Mum behind us in her gorgeous wedding dress!