Has AG heard of bike polo? It is like polo where you ride on horses and whack a ball with a crochet mallet but you are on bikes and you don't use crochet mallets. But it seems a bit dangerous and hard. Dangerous because you are slamming into each other on bikes going 25mph. Hard because of the fact that you are going so fast and in such a small area. For more info I have provided a link.
