This was my mom's birthday cake. I know it looks more like a little boy's cake. She works for the state DOTD, and was currently supervising a job like this..so that is the theme I decided to take her little party. All icing is buttercream, rocks are candy rocks, dirt is crushed oreo, cones are candy corn, and the toy trucks were picked up at Target. She loved it, and her coworkers especially loved it! thanks to everyone on this site for the great ideas..the caution tape look was picked up here.