The Peterson Automotive Museum is presenting an exhibit entitled Vacationland USA. There is a description and preview at http://www.petersen.org/default.cfm?docid=1032 If you work your way to the bottom of the page, there is a CLICK TO VIEW PHOTOS link that will take you to some images including a teardrop. Inexplicably, the 1950 Kamp Master has an extraordinary large hatch and a screen door under the hatch. I don't think I would set out to build one like this, but a mint or restored version would be an eye-catcher.
Tom