One of the easiest patterns to create with fondant is a simple polka dot effect. This look is created by using a contrasting color of fondant or gum paste that is cut out into shapes and then rolled into a different background color. You can use the exact same size and color of dots or an assortment of sizes to create unique designs.
Pick the colors you need and decide if you want to use fondant or gum paste for the design. Fondant can be best for cookies or cupcakes where you are covering the whole top.