Some homeschool groups do co-op classes. Now would be the time to contact them as they are setting up their classes for the fall now.
You could also do personal classes in people's home, kind of like a party. The hostess could get a discount based on how many paying guests attend.
(of course there would be a lot to think about with something like this, especially if the people are drinking. Maybe put limits on how many could attend.)
A few years ago when I had the time, my sister and a friend would have signed up to have someone come to my house bi-weekly to teach us decorating techniques in a serious manner (not a party atmosphere.)