This book "Going Digital: The Practice and Vision of Digital Artists"
had digital artists work with 3 images to create a new image. Many
who read the book expressed a desire to try their own hand at doing the
same challenge. So the authors posted the seed images to let others try.
You can download them at this site <www.digitalartguild.com> and play.
You can even post your results. See the site for instructions.
Challenge posted by JD Jarvis co-author of "Going Digital"
A number of responses have been posted and they are fun to see.
http://www.digitalartguild.com/modules.php?name=News&file=article&sid=53