[Callers] posters etc for colleges

I know that there have been threads regarding this but I do need some help so forgive the revisit. I'm looking for ideas for posters that will "grab" the interest of college students and get them to come to our dance. We are in Buffalo NY that has an incredible number of colleges and universities either in Buffalo or in the immediate outlying areas. Our college age attendance is pretty small and mostly the net result of one initial college age dancer. (we love her!) I'd like to get some posters up at the local campuses and wondered what had worked for others, and what did not. Thanks in advance! Mary Collins QCCD.org