I wrote an article for the Harvard Business School newspaper that introduces the concept of EA philanthropy using parallels to business/finance concepts. I think that writing articles for school newspapers that cater to the school's audience is a great activity that any EA student group can do, as it helps with not only spreading the idea but also as a beacon that draws in people who were already sympathetic to the idea to get more involved in your group.
Bill Barlow, a student at Harvard Law School, wrote an article about earning-to-give for their school newspaper, which got us connected and led to us working together on a Harvard grad student EA group. Article link: Want to Save the World? Do BigLaw!
Have other student groups done similar things?