Promoting a Faculty-Directed Program can be a time consuming job. However, using your network at the university could possilby help you reach numerous students quickly. Ask your colleagues at ASU (or other universities) to say a few words about your program and important dates.
Provide them with Program Flyers, your contact information to give to their interested students, and even a couple slides and talking points for them to use when talking about your program. You can also ask them to pass around a Student Sign-Up Sheet to collect information about interested students for you!
If you reach out to faculty at other universities, also provide them with details on how non-ASU students can apply to ASU as non-degree-seeking students in order to participate on your program.