Summary: assembly and cut to just fit under top board. Cut or slit cupcakes to fit around dowels and put into place on each. Ice back and sides of wheels with a star tip and zigzag motion. Screw the 9x13 board onto the dowels. We used toothpicks as guides. Position the 9x13 cake on the board. To ice front of wheels use a very long shell from the outside to the middle
Image Dimensions: 250 x 188
Image originally found here.