Sorry I haven't made one of these in a while, I've been pretty busy lately, but I was able to sneak one in this weekend.
Here's one I came up with while messing around in photoshop coming up with my congratulations piece for Tetris999's sig
Pretty simple, and if you've read my other tuts, you should be familiar with most of the tools etc
-Step 1. Open a new document (duh?) with whatever dimensions works best for your project
-Step 2. Press "D" on your keyboard to reset your default colrs (black and white) or press the icon next to the colors in your tools panel
-Step 3 Select your gradient tool, select the foreground to background gradient (black fading to white). Make sure that you're in difference mode and that you're using the "reflected gradient style", (second from the right.
http://img96.imageshack.us/img96/3697/step1va5.gif
-Step 4 Click and drag the mouse about fourty times across your document, for a decent amount of length, lets say about 1/4 to 1/2 the size of the document each time. Yes I know 40 seems like a ton of times, but it really doesn't take that long. And if you do less than fourty, I won't tell anyone.
http://img178.imageshack.us/img178/1930/step2dz1.gif
^^You should get something like this^^
-Step 5 Now your going to continue with the gradient tool, on the same layer, but now you're going to make your strokes very short, and at different angles. You only want to do about 5 of these short ones. It should look like this.
http://img218.imageshack.us/img218/3660/step3qq5.gif
-Step 6 Time to add color, Press Ctrl+U to bring up the hue box. Now we don't want to go overboard on the saturation, because it will look like we are forcing our colors, and that's not our goal.
http://img147.imageshack.us/img147/1897/step4br4.gif
-Step 7 Now create a new layer (press Ctrl+Shift+N) and with the gradient tool again do exactly what we did in step 4, but only do it about 10 times.
http://img142.imageshack.us/img142/3838/step5om7.gif
Change this layers blending mode to "OVERLAY" from the dropdown menu in the layers window.
-Step 8 Press Ctrl+U to bring up the hue window for this layer. The key here is to bring the saturation all the way up, otherwise you won't be able to see this second color, which is kinda the purpose.
http://img171.imageshack.us/img171/9327/step6vl2.gif
And you're done!
Finished product
http://img136.imageshack.us/img136/3372/step7nr3.gif
If you want to go one step further, you could throw a wave filter on your base layer
http://img244.imageshack.us/img244/8428/step8sv0.gif
For continued pandamonium use three layers, ooo ooo and have one be the wavy one!
http://img147.imageshack.us/img147/5...native2yb6.gif
Ahh, well until next time The Catalyst, signing off! (I've always wanted to say that) :D