If you look around on Google and Pinterest, you will see that there are lots of cute ways to paint cornhole boards! I am not the most artistic, however, so I decided to spray paint some easy to accomplish stripes on my boards.
I opted against staining my boards, since I read that stain on plywood can turn out blotchy.
I decided to prime the boards with some white spray paint primer. My boards were already smooth and didn't need sanding. I simply wiped the boards clean with a damp paper towel before beginning my project.