this might be a noob question but how to u do the little squares in the second to last one? please tell me. thanks.
Actually it's pretty easy...This is for photoshop:
Okay first, if you want to apply this affect to your signature, you open the signature you want, create a new layer, then go to apply image, to apply image.. when you are done that, go to filter, pixelate, mosaic and set it to 12 size square.
Once you are done that, you can erase what you don't want, before or after you add the effect you want.
After that, you go to filter -->sharpen-->sharpen then click control F a couple of times more until you get the effect you want. This looks best when its only in corners, but its your choice you use it. I personally think it looks 100% better with darker colors, and you cant do it on just a white background or just black, it has to be a design, or you wont be able to see the mosaic tiles...
But anyways The littlebigplanet one's are the best in my opinion...