The tin cans rattled behind the car & they drove like that to their honeymoon destination& also along with the tin cans was the words "just married" written with a spraycan of shaving cream on the back & front car windows. It all was to let the world know another couple had tied the knot. It did make a mess of the windows but back then you hoped you only got married once. It was Aussie tradition & of course it was VB cans tied on the back. ah those were the days. and then the divorce parties, that's a whole nother Aussie tradition.