I'm pretty happy with how these turned out. I hand drew them with a fine point sharpie and a Pilot G2 pen, got them scanned, opened the jpg in Illustrator, zoomed them in (they were really small doodles), and then cleaned them up and colored them in. Pretty fun. I'm really happy that I've finally started using Illustrator's live trace feature. What was I thinking retracing stuff before?! No wonder I rarely finished anything!
Here's an example of the original doodles:
Oh, and blame Alex for the "What's for Dinner?" print. I asked him to give me something cool to put in a speech bubble and he said that (we'd already eaten).