Assignment: Get some chalk and work on the sidewalk near your home.
Materials: big crayola chalk
Inspiration: Well, we don't have sidewalks on my street, so I used my back walkway as my canvas. Once again I just free formed, letting the contours of the concrete and rocks and moss determine the pattern.
My neighbor cat (who I'd dubbed "Smudge" due to his markings) insisted upon helping, and definitely lived up to his name.