Open a numbered window for each December day before Christmas. On Christmas Day, open the front door. Enlarge template by 200 percent; repeat. Trace outline on two sheets of heavy card stock to use as the front and back "walls."
Mark position of door and window shutters with a pencil. Cut slits for door and shutters; number shutters randomly. Place images from old greeting cards behind each opening; adhere with a glue stick. Edge roof, chimney, and foundation with red paper; add gold trim. Glue ribbon loop between boards, to use as hanger, before gluing back to the front.