We went black + white + geometric with this year's advent calendar.
I love our advent calendar tradition and this one fits right in with our other home decor so I don't mind having it up earlier. The boys have been changing the configuration up each day.
I stamped numbers on the back so we knew which day we were opening.
I wrote about how I put it together on All for the Boys. I love how it looks on our bookshelf in the front room!