If you did not change your desktop yet, you can do it now with my free desktop calendar.
And here is a download link:
klick
For this design I used my own Christmas clipart sets which you can find bellow:
https://creativemarket.com/swiejko/15955-Gingerbreads-Christmas
https://creativemarket.com/swiejko/1070578-Watercolor-Christmas-Clipart