The project must be a real one. That is, you can't fake up an ad campaign for some non-existent product, or anything like that. Many campus agencies do promotional work, or need some more. For instance, there are dozens of plays, musical performances, and art exhibits every semester. Student-run organizations such as UUB and BCA do a number of public shows every semester.
Greek organizations do fund-raisers.
Athletic teams always want to increase their fan base. In the past, some students have even made connections with local businesses, and tried to increase sales of a particular product. I have no funding for you, but your sponsoring agency might. This certainly needs to be a semester-long project. You will conduct the project using ideas from your textbooks, and will write it up for a grade.