Abstract Signature

1. Create a new document in Photoshop.  Your document can be whatever size you want, but mine will be 300x300.

2. Open up a picture and paste it into your document you made:

3. Open up a few other pictures, and keep pasting them on top of one another:

4. Once you have 4-10 images stacked up, click your top layer.  Set the blending mode to Hard Light:

5. Repeat for all of the layers below this one except for the bottom layer with an image in it:

6. Grab your Fill Tool, and select the desired color for your image.  I chose blue.  Now make a new layer above all of your other layers, and fill it in:

7. Set this blending mode to hue or color:

And that's it!  Now you can make a cool signature, or graphic from this!

Good Luck!