I've had several PM's referring to a picture I posted some time ago wanting to know the method I used in creating dry, cracked dirt. I'm sure there are dozens of ways to do this but here is my method. As with any good idea I've ever had, this one was discovered by accident several years ago. 1st, paint the surface your wanting to cover black and let dry. I discovered this method by accident, I was trying to make mud. When the mud dried it cracked and each crack was bright white!!! ...the color of my base, so don't forget step 1. Next, collect some dry dirt, and sift it so it's very fine. Mix some of this dirt w/ about 90% Modge Podge and 10% water. (Save some dry dirt for later) You want your mud to be thick like peanut butter. I use my hands and smear a coat of mud on the surface that's at least 1/8" thick. Tape off anything you don't want mud smeared. Finally, crush your remaining dry dirt to the finest powder you can. I spray my mud w/ a fine mist of water and use my hands to set it nice and smooth. While the mud is still slick and damp, sprinkle the powdery dry dirt on the mud, then you can turn the base over and knock off the loose dirt. This makes the dirt look dry when finished, otherwise it just looks like cracked mud. You can dry your habitat in front of a fan and generally mine are cracked and dry the next day.