This was for my daughters birthday.  It was an oreo cake with buttercream.  I used some of our disney toys as cake toppers and created the rest with frosting.  I used the Wilton doll pan to make the rock and covered it with frosting, graham cracker sand and candy rocks and octopuses.  This was one of the quickest and easiest cakes I have done (only 3 hours!).  Yes, she loved it!