Great idea.
1. Offer a cut rate for seniors
2. Recognize state placers in a parade of champions before
3. If a 2 day tournament could you do a clinic for kids with a fee and free admission
4. Can highschool coaches be involved with kids? If so offer cut rate for bring more kids from your team.
5. Can you some how involve college coachs for recruiting. Meaning get commitments from coachs that will attend.