Cute, expressive Christmas elves...step by step! A little late for Christmas this year, but you could always start making them now for next year! See tutorial at Cold Porcelain Tutorials.
Tutorial was written for cold porcelain and you can use either homemade cold porcelain or purchased brands such as Craft Porcelain. See the recipes section of Cold Porcelain Tutorials (and Recipes) for a few different ways to make your own cold porcelain. If that's not your thing, many other air-dry clays would work as well...especially the soft pre-colored brands such as Deco Clay, Cloud Clay, Hearty Clay, Makin's Clay and many other brands of soft, or semi-soft, clays.