I have done this before having the students create brochures for local attractions, zoos, amusement parks, etc. Or, you could have them "create" their own attraction. It could be hand created or done on computers. You can make it cross curricular by incorporating something from social studies in with it (visit a city/place in USA or other countries); or something from reading (advertise a book read recently - google book commercials). You could have them invent something (science) and create an ad (written or commercial) for it.
This is just me spouting off some ideas - hope something helps!
