It was a few years ago when I realized that there was pretty much a world championship for every activity that means anything to anyone.  If you play rock, paper, scissors - there is a world championship.  The same holds true for pig hollarin', paper airplane flying, chasing a rolling cheese down a hill, juggling, talking backwards, speed talking, speed walking, oyster shucking, and hotdog eating.

In fact, I would not be surprised if there was a world championship for listing world championships.  So, just in case there is and you are planning to compete, make sure you include freehand circle drawing in your list.