I have iChat AV and my DV camcorder hooked up to the computer. A while ago Liz and I were bemoaning the lack of a roll-your-eyes emoticon, and others beyond the limited repertoire.
Turns out with iChat AV, if you click on your own buddy icon and select "Edit Picture..." from the subsequent drop down, you can take a snapshot of yourself. Voila! Custom made emoti - icons. Switching facial expressions is pretty easy. Just pick the face of the moment from your buddy drop down.
So I'm playing with the blog design again, and threw a bunch of these emoti-icons down.