This is to create a strange, sci-fi looking tunnel using a lot of filters. Perhaps for a tech signature or background. Not sure what it's uses are, but I thought it was kinda cool.
1) Create a new picture with the size of 400x400 pixels, or something that you feel comfortable with, but it works best with a square canvas.
2) Set the background as black. Then go to "Filter > Render > Lens Flare." Use the 105mm Prime and make sure it covers most of the picture, but leave some black. After that, it should look like this:

3) Go into "Filter > Distort > Wave" and put the settings at something around where I have. Feel free to mix this up to get some weird results, too.

You should then have something looking similar to this:

4) Go into "Filter > Stylize > Find Edges" to turn it into this:

5) Once that's all done, head over and apply "Filter > Artistic > Plastic Wrap" with similar settings as I have.

6) After the Plastic Wrap, go to "Filter > Distort > Polar Coordinates" and apply it to "Rectangular to Polar." You should end up with this:

At this point, you can finish it up and colorize it if you wish. I chose to leave mine as it was, since the colors were actually fitting. However, if you're a perfectionist, like me, then that vertical line in the top part of the picture will get to you. You know, the one where it looks like the picture doesn't match up. But there's an easy solution.
7) Select the bottom half of the picture, or the part that doesn't have the line going through it. Getting it through the direct center can be a bit tricky, but it's not impossible.

8) Once you've got that section selected, copy it and paste it in a new layer. Then, with the new layer selected, go to "Edit > Transform > Flip Horizontally." After that, go back and flip it vertically too. Move the layer so it's at the top and covers up that ugly line at the top.

9) But now there's a horizontal line that makes the picture look broken in half. Grab the eraser and set the brush to about 100 with hardness at 0%. Then brush away (in small strokes. You don't want to erase too much) at the "broken" area to make it look smooth.

10) Ta-daa! No more unsightly broken lines. And now, you can colorize it if you want, cut and paste it into a more fitting sized signature, etc. It's all yours.