Step 1: File > New... >>
Width: 300 Pixels
Height: 100 Pixels
Mode: RGB Color
Contents: Check White
Step 2: Default foreground (Black) & background color (White).
Step 3: Filter > Render > Clouds.
Step 4: Filter > Sketch > Bas Relief.
Detail: 13
Smoothness: 3
Light Direction: Bottom
Done!
Preview
