Photoshop has forever changed the way images are used in advertising. I enjoy seeing creative folks put this tool through its paces, and the Worth 1000 site has tons of great examples. They are hosting a contest for the placement of modern products in old-fashioned themed ads.
I think you'll crack a smile, or two, as you click through the examples in the Vintage Ads 6 contest.
The site has many other live contests all the time, so anyone with the ability should give it a shot.
Visit the Worth 1000 home page for details on more contests and Photoshop fun.