I know there has been a lot of discussion about copyright laws regarding photos taken off the internet...and I don't know how much this will help anyone, but I figured it would be good to post anyway...there is a website, istockphoto, there have pictures of just about everything, and what they told me when I asked them about using images for commercial use, or using images for commercial use that I messed around with in photoshop/gimp/whatever program you are using is that I could either purchase the commercial license and have the freedom to print that image on 2,000 products, or if I used the image to create a "permitted derivitive" it would have to so different that no part of the new image could be recognized as the original, and that the original artist would not be able to recognize it as their own work. Not a lot of clarity, I know, but I thought I'd share regardless.