Pop-up-Karte "Geschenke" (chrismas party ideas for kids)
Simple Ideas That Are Borderline Crafty - 40 Pics
Pop Up Christmas Cards, Christmas Crafts
I know this isn't a Nativity, but I wonder if this concept would work for one - I love the items stuck in the top - a star and an angel would be just right up there.
The Chic Technique: Plastic spoon flowers.