I think somewhere I heard that having a lot of girls wearing your letters (ie rush shirts) might be effective. Maybe if you could get girls on your campus to help and have that as a part of a fund raising event. It could be greek and non-greek girls alike to participate. I know when Sigma Chi did their derby days, all of the girls would wear their derby days shirt. That way you could spread your pr for rush and do something to help out in the community. It might be worth a shot! Hope that helps some.