Customizing the Kerrymonster can be fun and allow it to fit various tastes or themes. For a sweeter drink, you can add more peach schnapps or a splash of grenadine. To make it more visually striking for a special occasion, consider layering the Blue Curaçao over the back of a spoon for a gradient effect. For a less alcoholic version, reduce the vodka and replace part of the blue Curaçao with blue colored syrup. Adding edible glitter could also make it more festive for celebrations.