How about an Ambidextrous club?
I was taught to shoot rifles right handed, but then when I picked up a handgun, my nature was to shoot left handed. Then I started shooting shotguns lefty a bit, and to this day, I go back and forth. I have a couple left handed rifles (sorry, no pics yet), and a left handed compound bow, and a bunch of right handed rifles and bows. My sis is the same way, although she was taught to write left handed, so she calls herself lefty. Neither of us have a consistent eye dominance, we bounce back and forth when we do the standard tests.
Although I can't bowl left handed to save my life. Not that I bowl often, or very well right handed either. But the one time I tried it left handed, I was nearly incapable of doing so.