You could come up with a family version and offer chicken classes for $20 a family wanting to start out in chickens.
I teach home school science classes in my house & also offer Park District classes. I've done a lot with poultry in my science classes & it's also a good way to sell off any extra eggs at the end of the week. With the park district, it's hit or miss. I either get a lot of interest or my class gets cancelled. I target kids but always welcome parents to stay for the fun. In fact, I think the parents sometimes get more excited to see a chick hatch than the kids. My daughter has become the chicken expert at her school. Now she's getting some invitations to appear with chickens at misc. events around town. Our hen was even asked to be in a high school play! LOL When I go to a preschool or do a classroom presentation at her school, I try to bring her as my assistant. It's nice to have an extra set of hands to carry in all the boxes & her quick reflexes if needed.