I am not the biggest fan of the whole star piping a cake. Fondant, gum paste, no prob. just anything but star piping!I get very impatient with it and things tend to get messy. And I have issues with red icing. I cannot tell you how many pink football, apple, and you name it cake items have turned out pink instead of the appropriate red. But, the boy wanted a red car cake so that it what we did! And I survived it.