I like these knitted letters made by Danish textile designer Line Dyrholm in wool. I have used them to write "snow" and "christmas" (in Danish "sne" and "jul"), but they are nice as a garland with the kids' names as well. You can buy them here.
In Frida Viola's room some of the pennants from the wedding are up as well - along with her little name-heart and a crochet garland I made a while ago. Not real Christmas decorations - but it looks nice anyway :)