Here is a seemingly innocent set of computer instructions which produce remarkably organic looking images. The idea is to "randomly" select the colour of each pixel on the canvas so that it is similar to the colours of other pixels close to it. Go to this article for some more details about how it works.
Try the Random Canvas generator yourself by pressing the buttons a lot..
Remember: Each new image you see has NEVER been created or seen before. If you like it, then drag it to your desktop! If you make a really nice one, or if you like this, I'd love to hear from you!