[2020] Contacting ConcernedApe??

This may be completely random... but Stardew Valley is a game my wife and I have been playing together extensively and we are completely obsessed. We’ve actually named our sailboat “Junimo” and we are in need of purchasing a new headsail. We’d like to put a small Junimo sprite on the sail and want to make sure we avoid any copyright infringement sand have permission from the guy himself. So if anyone has an idea how to reach out to ConcernedApe that’d be great! And don’t worry we’ll be sure to post pictures once Ohio warms up :)