Hair How-To: The Messy Knot Bun (click for step by step instructions) --- if your hair feels silky/slippery, you might want to spray it with a texturizer, sea salt spray, or dry shampoo before you begin.
baking soda cornstarch clay ornaments - These worked out really well. I did have to cook mine almost twice as long as recommended and they didn't turn out quite this smooth and pretty, but they took paint well and turned out pretty cute. You can do some sanding/shaping after they've dried. Just be careful, if you wet them, they will turn back to mush, so seal them well.