Silly Farm Rainbow Cake - Gum Drop (2 oz) Each 2 ounce Silly Farm Gum Drop Rainbow Cake is good for 75-200 applications. Gum Drop Rainbow Cakes include strips of Yellow, Turquoise, Hot Pink and Purple face paint. Allows you to pick up a rainbow of color in one broad stroke. Rainbow cakes are an easy tool to enhance your face painting designs. Excellent for face work on a body or face.