Are the leaves changing in your town yet? I was at the beach last weekend and coming back via backroads I noticed the leaves were already changing. They have started in my town in Central Georgia. This time of the year is quite inspirational for me as an art teacher. The young children can be taught how to make secondary colors. Middle schoolers are interested in making earth colors. A variety of media can be used for a variety of products.
I liked to use Georgia O'Keefe's painting of an autumn as an inspiration for creating various products for the many grades I taught.
My bundle of Easy Leafy Fall Art Projects is quite popular.
https://www.teacherspayteachers.com/Product/Mizz-Macs-Easy-Leafy-Fall-Art-Projects-862114