I have enough projects to finish without evening thinking of starting this one, but wouldn't it be fun to make this for grandkids or a special quilting/stitching buddy? And look, this calendar hangs from a knitting needle!
Buying the wool felt suggested, makes this calendar is really expensive; but using your imagination, it could be sewn up a lot cheaper and still be really cute.
Hmmmmm, there is still a lot of time to try to put one together. Here's the link; I'd love to know if you make one.