The pattern printed on the calendar is wrong. I initially submitted the photo, and was not informed that the design was accepted. They just put in a different pattern there.
Good thing, anyone interested can now download the pattern for free, here on Ravelry.
I even added a variation for the embellishment. Details on my blog on this post.

The last photo shows 3 other hats from the same pattern,
made by my crochet buddies: Ashley, Catena and KnitMama247.