Cake decorating using a baking airbrush kit is a hobby currently growing fast in popularity. Surely you can use a brush for cookie or cake decorating, but using a baking airbrush kit make it so quick and easier. Instead of coloring the fondant or the icing, you can just use the airbrush and spray on the cake or on your cookie. It will save you all the kneading time mixing the color into the sugar paste. Much faster and more economical as it requires less food coloring.