Plan59 is an online "museum and gift shop of Mid-Century illustration". Over 500 images are available as large format prints and a seemingly endless amount as digital files (also available for purchase/licensing). Browse through the Decor section for some inspiration or stop by the Demonic Tots and Deeply Disturbing Cuisine gallery if you think you can handle it. Good stuff can also be found in the expansive Advertising gallery - (there's a caption contest in there somewhere, I can feel it!)

www.plan59.com