- Grab a piece of paper, any paper. Post-its, index cards, or your brown paper lunch bag will all work.
- Draw in a continuous line. You can use any shape, but curvy overlapping blobs look great with zero effort.
- Fill in whatever parts of the blobs you want with contour lines…or don’t. Whatever looks best to you.
- Do all of the above without thinking, without even getting involved.
You might end up with something that looks like this:

Did you try it? Take a picture of it or scan it, put it online with TwitPic, Flickr, or ImageShack, then link to it in the comments. Don’t be shy :-)