I think we have more than Australia. The Orange & Green in N Ireland, Reds & Blues & Yellows in England Reds & Greens in Wales and different shades of Blue in Scotland. So mix that lot up and you could do away with the Union flag and have a new UK national Flag. I am sure there is a Rainbow flag in there somewhere. It was not that long ago that the Rainbow flag was given precedence over the Red Duster on Merchant Navy memorial day by a load of Southern poofters.