We have Cash in this little exercise class with a friend of his. Each week they learn a few basics of a different sport or skill like jump-roping, tennis and even lacrosse (with tiny little lacrosse sticks). Here's a little gem I happened to catch during the volleyball week. Perhaps it will be a little self-explanatory as to why we have him in a class like this.
(Sorry, any poor footage was from me laughing so hard. In case you can't tell from the video - he closes his eyes and flinches every time the ball comes near him!) I know, maybe people will say not every kid is into sports, but well, as Ryan put it when he first saw the video, "Yeah, that's the kind of kid that gets nailed in dodge ball."