First you need a background image. just do a google image search for a good background, or make one yourself in photoshop.
I used this one: Genosis.
What I did was invert the colors, and mess around with the color balance. you can do that by going to image > adjustments > invert. and then Ctrl+B. just mess around with you're colors until you find something. to make gridlines, create a new image 5 pixels x 5 pixels. zoom in all the way, and then choose the pencil tool, 1px. Make a line across the top and left of the image, and click edit > specify pattern. (something like that) now go to your image, and choose paint bucket. then chose pattern in the drop down menu, and choose your pattern. now fill your image.
now you get to put in an object like my snowmobile. find one via google image search, and paste it into the sig. use the magic wand tool to remove all of the background of your object. if you want to, you can blur it just a smidge. it kinda lets it blend better. now add your text, and you have a basic sig!
Here's my final image:
Please tell me what you think, and go easy on me, this is my first tut.
