You may get a lot of suggestions to keep the course fun and entertaining; here is one to keep it serious and down-to-earth. Fortunately, the essence can be presented in a few minutes, and a good job on it need take less than half an hour. If they want to communicate their results professionally, they will need to learn platform skills and writing skills, but they will need research skills even more. Some suggestions as to how to find references, evaluate their credibility, and cite them in reference to their own work, should come before learning how to find a journal or conference (or even another mathematician) to submit their results. It may be fun to reinvent the wheel in your own way; I suggest it is more satisfying to use it and other pieces to build and sell a car.
Gerhard "Email Me About System Design" Paseman, 2011.06.26