Just follow your recipe for making chocolate chip bar bookies. For the picture on the horse cake, I had ‘Spirit’ in mind even though it doesn’t look like Spirit! I drew the horse on the cake freehand with black piping gel. It was easy to wipe off if I made a mistake.
Once I had the outline right I filled it in with frosting. I used spray food coloring for the red sunset in the background, plus the red covered any black piping gel that didn’t wipe off. I used a leaf tip to make the grass, and just a writing tip to make the flowers.