Open up a new document 400x150 with white bg, and draw diagonal lines like so:
(they don't have to be perfect)
http://img26.echo.cx/img26/543/zaybra2dr.jpg
Filter > Stylize > Wind (from the left) and Ctrl+F
http://img26.echo.cx/img26/3411/windedzaybra7cg.jpg
Duplicate the layer, Filter > Distort > Twirl (angle 248) and Ctrl+F
then Filter > Stylize > Find Edges and set the layer blending mode to darken
http://img150.echo.cx/img150/5156/ooglayzaybra2qu.jpg
Ctrl+U, check colourize, and pick your favourite colour (I chose +30 with lightness +30 aswell), then duplicate the layer, flip it hoizontal, and set blending mode to darken
http://img150.echo.cx/img150/6025/deadzaybra7pp.jpg
Merge layers, duplicate the layer, flip vertical, and set blending mode to one of the following:
Darken:
http://img80.echo.cx/img80/8001/thezaybra7hk.jpg
Lighten:
http://img80.echo.cx/img80/6864/theo...themall2tr.jpg
Color Burn:
http://img80.echo.cx/img80/2055/burntzaybra8mu.jpg
Overlay:
http://img138.echo.cx/img138/2904/yellowzaybra1yl.jpg
or Multiply:
http://img138.echo.cx/img138/402/eyeballzaybra7sv.jpg
now (using multiply as the example), merge the layers, duplicate it, Filter > Blur > Gaussian Blur on the top one with radius 2.3, and set the blending mode to lighten.
final result:
http://img100.echo.cx/img100/2597/finishedzaybra9xm.jpg
another one I made (forgot what I did) that turned out better than this