With a tutorial and a powerpoint presentation (in English, of course) the pupils of 6°2 made pop-up Christmas cards. The template for the Christmas tree comes from the website "hugo l'escargot".
The tutorial (I adapted it from "Hugo l'escargot")
Carte Sapin de Noël en 3D, fetes sur HugoLescargot.com
Fiche créative de fetes détaillant Carte Sapin de Noël en 3D
http://www.hugolescargot.com/fiche-fetes/carte-de-voeux-sapin-de-noel-3d.htm