I don't know if you are looking for academically-related activities or not.
I've played on several school softball teams, and right now we are beginning a basketball tournament (we finished our regular season in 1st place!). Those activities are always fun and provide lots of fodder for classroom discussion. At my school, we participate in the city sports leagues, so there is typically some good competition from the other teams.
I'm an ATSU Ambassador, so I give tours of the school, do some public relations things, give presentations at local colleges (just did the ASU pre-dental/ASDA club last week), and stuff like that.
We don't have any research yet, so I haven't done that.
Once we are done with our Boards (July 12), I plan to volunteer at local offices and clinics.
I'm also hecka busy with my church.