The other day, while watching Cars, I had an inspiration for the backside of my proposed layout. I am doing a post WWII, pre 60s layout. Its going to look alot like the 2nd place winner of the midsized layout in the June MR issue. A 9 x 11 square and on one long side I want evergreen mountains and desert along the other long side. I was thinking of some of those great desert scenes in Cars. Then I also thought of the great desert scenes in Warner Bros. cartoons starring the Road Runner and Wiley Coyote. I have some ceiling tiles that I thought might work, and have read up some on the breaking and brushing. Any suggestions for making layered desert scenes? Ceiling tiles? Foam? Sculpey? Poured magma?!?