Hey, yall!
I've been talking to folks about how they've maintained relationships with folks and organizations who sponsor their open source projects. Some people have said they:

• publicly thank them by posting tweet that says "Thanks so much to @username for sponsoring my #opensource work on GitHub Sponsors!"
• make release announcements that say "this release brought to you by [insert sponsor name]"

I'd love to hear from you: what other things can people do to make sponsors feel valued?