The above nativity set project reminds me of something we did about 10 years ago for our "Family Advent Night." We made a nativity in a box for each family. I ordered boxes from U-line (the kind that have the flap that folds into the front. We used paper towel rolls cut into different sizes for the base of the figures, and used paper, markers and assorted colored and printed napkins to dress the figures.
On the back of the box, create a series of question related to the various characters that can be seen each year that the manger is displayed. For example, for the "Angel" figure, ask the question, "How am I bringing the peace and joy to the world and my family that the angels announced in Luke 2?"
The prep was pretty extensive, but it was worth it!
It was one of the more popular activities we have done for Advent. I still hear from families that they have their nativity box and put it out each year. It was nice that everything fit into the box for storage.
Directions (including photos) are attached.
Note: The dimensions for the paper for the clothing are included in the instructions. The head drapes were simply half circles cut from napkins. The center of the straight edge of the napkin semi-circle is glued to the top of the figure's face and then the straight edges drape on either side of the face. The curved edge hangs to the back. You can fold the napkins easily and cut your semi-circle so that the drape will fall about three quarters of the way down the figure in the back.)