This is an effect i discovered incidentally while clicking here and there. It is not exactly very cool, but i think it is quite useful as some kind of a background. Of course, it is a very basic technique, but just take a look:




First, start a new page, white background, 500x500

Then, use Filter>pixelate>mezzotint



Then, use filter>blur>radial blur, with all default settings, using zoom



The next step is to do Filter>Distort>twirl. Set it to about 30 to 60, depending on your preference.



Then, use hue/saturation to colour the twirl to your colour of choice.



duplicate the layer and try out different effects. This is a background you can use for your sigs. Enjoy!

(sorri for the bad images, i lost the images on my com... too lazy to make a new one... sorri...)