I'm not really sure what inspired this one. It's been a while since I did any vector work, so I thought I'd play around with my recently-upgraded Illustrator CS5.
Geeking out: the ability to selectively scale strokes makes the upgrade to CS5 completely worth it. Now, if we could only selectively scale brush strokes, too! (Yeah, I know, you can adjust the thickness by varying your pen pressure, but that's not the same thing.)