This was made from a 11x15 one layer cake cut into 4 5-1/2 inch squares (stacked) and the left overs were cut into 2 triangles for the tracks. This could be done with 5 layers of a 6" square pan. The eyes were made with a plastic dow cut to size and covered in gray fondant. Then I hot glued a card board piece cut to size to the top of the dow and placed a small piece of cake carved to the shape of the eyes. Iced in Buttercream with fondant circle for the E.