To order project books for 2020, the OSU Extension publications department is offering direct to you free delivery OR 20% off your entire order for Ohio residents. Only one coupon may be used with each order. Go here for more information and coupon codes.
Ohio 4-H is also offering several projects, available as free downloads here. Creative arts, writing, and cooking projects are just a few options available to download.
You may also want to try a self-determined project. Information and idea starters can be found here.