I'm not not interested in this idea.
I think the hard part would be coming up with ideas and writing copy for the calendar. Illustrations are time consuming but straightforward (and fun), and there are probably plug-and-play services for manufacture and distribution.
One project I'm working on is compressing EA-related material into tweet form (eg), and a curated selection of these could form the backbone of the copy.
I've made a note in my calendar on September 1 next year to revisit this idea and see if I've got enough raw material for put something together for 2024.
If someone else wants to participate (writing, ideas, illustrations, or even accountability check-ins), DM me or leave a comment and this'll be much more likely to happen.
You're welcome!
I've added the communities page to the main text.