A topsy turvy BMX themed cake, its covered in brown fondant and then I took my palette knife and some icing and kept touching the sides everywhere and then removing the palette knife (no spreading just touch and pull away) to create the illusion of dirt. Fondant gears were just circles cut out and then took a #12 tip and used both ends to take medium and small circles out of centres and on the outside of the gears I went around the edge with a smal square cutter. "finish sign" and bikes are edible image.