In 1978 I purchased one of these "Uncalendars" and have often wished they were still available to buy as gifts.
I finally remembered to contact the Mental Health Association of Oregon and spotted the link on their sidebar. Woohoo!
Sadly, it's not in color nor is it 12x12", BUT still happy to have found it.
07/31/18 And now I see they no longer have a link
for the pdf on their website. If I can find my saved pdf, I'll add it here.