This was modeled after a cake by bwonderful. (THANKS!) I used BC for icing and carved the roads out of a stacked cake. Rocks, Road, cones, and other fixtures are modeled satin ice that has been airbrushed. I did this about 2 weeks back, waiting for a photo from the customer showing the Cars characters on the cake, but no success, so imagine Lightning Mcqueen and his buddies cruising this cake! TFL