When we make the GF, I have a set of maroon and white bead necklaces which got given to me at the 08 GF (long story), and I have never worn them since and saving their luck for the next GF we get to, as I somehow drunkly decided that wearing bead necklaces must have been good luck and as a bloke I don't do that often, well once only so far.
I had many girls try to get them off me at the Leagues Club after the game, but as I insisted on Mardi Gras (New Orleans, not Sydney) rules I kept them.