The admins have set up a design contest, and you can read about this at Monica’s blog. She really did a ton of work to review submissions, ask for our feedback, and deal with designers. Everyone that supports this project owes her a huge debt of gratitude. Please thank her when you see her next.
The design contest is at 99designs, and I think there are some good choices. We picked 4, and you can vote until Friday, 26 March 2021. I grabbed the four designs here, without the extra stuff that might be included. Leave comments and you vote, and let others know.
I won’t talk about my favorite, but I like all of these to some extent.