I suggest having group competitions of some sort. A member of Staff can make a thread having each competing group bring forth a roster of a limited number. I know members are in multiple groups, but you would only be allowed to be on one group's roster. We can do anything that the community desires. There would be a point system given to the winning groups after each event. First group to reach a certain point total receives a site award that is given to only the members on the roster. There is no money spent in this arrangement. It's just a little competitive fun for the community to engage in.
Competitions could be debates, gaming, etc...
Competitions could be debates, gaming, etc...