I ran across the DNA Rainbow project today. A couple of guys compiled images based on the human genome sequence, where each pixel is a base and the different bases are different colors.
The closeups where you can see the static of the different colors are sort of like those "Magic Eye" posters. More interesting are the zoomed-out versions that show an entire chromosome at a time. At that scale, each pixel is a blend of lots of local variation, and you can see soft color stripes that correspond to GC-rich regions and the like.
They might make a good illustrations for classes!