Make sure to periodically e-mail the parents of campers before the camp. Remind them when the camp’s date is approaching, and let them know what their camper should bring with them or wear. Make sure every email is professional. Have a mentor help draft your emails if you haven't written professional emails before.
Things campers should bring along or wear:
Tie dye is fun chemistry; keeping in touch with parents ensured that every camper had a shirt to dye!