Check out the web site worth1000.com. If you're into image manipulation or just like to see the amazing things that can be done by very creative people you'll love this site. This is a "contest website" where people submit creative images in many categories, like "Vintage Ads", which gave participants 48 hours to create an ad for a modern product using vintage advertising motifs. There are many other categories and you can spend a lot of time going through the galleries. It looks like you can also sponsor a contest. The top image is a winner from the "Vintage Ad" contest. Below is an image from "Edible Architecture".