Signature Background

1. Make a new document, any size doesn't matter. Now press "D" on your keyboard to reset the foreground and background colors to black and white. Make sure your background is white.

2. Select the Gradient Tool and make a horizontal gradient like mine below:

3. Go to Filter>Distort>Polar Coordinates and use these settings:

Now add Filter>Sketch>Chrome:

4. Now we want to distort the grey circle that was created. Go to Filter>Distort>Wave and use these settings:

Add colors Ctrl+U:

5. Duplicate the layer. Apply Overlay to the top layer:

6. Emerge the 2 layers together. Use the Rectangular Marquee Tool and find the best part of the graphic and select it:

Here is my final forum signature: