I found the graphics for this cute nativity countdown at PC Crafter clip art. They are adorable.
You just print the pictures onto Avery T-shirt transfer paper and iron them onto white felt- then to make them a little sturdier you can whip stitch them to another piece of white felt.
I haven't added the dowel, stable, or any other extras because it's only fifteen days until Christmas and my kids need to use it! Is anyone else feeling slightly panicked?