re: Super pictures. Looks like gophers on the one.
You can also make craters on the screen of your TV or other CRT monitors. Allow the dust to accumulate and then bring your finger into close proximity, the resulting static discharge (if conditions a right) will displace the dust in specific patterns. Movement speed and direction can be determined by the patterns. a single stationary discharge makes a perfectly round dust-crater.. Now look around the solar system at all the cratered bodies and you'll see alot of similar symetrical and overlapping patterns. You'll need to Go For an open minded adventure, however.