Instructions for this image:
1. Erase to Black. (Ctrl - K)
2. Color Noise setting 500. (Ctrl - Alt - P) Repeat three times.
3. Select the Selection Tool from the toolbox. Start anywhere near the center of the image, and select an area that's Width 6 Height 6. Crop to selection. (Very tiny image)
4. 4way Flip. (Alt > I > S > F)
5. Smooth Resize to 256 x 256. (Ctrl - R)
Note - this final image was lightened so the text would show up better.