The glue included in your playset is designed to be easily removed with warm water, so you can play and experiment with designs again and again. However, both the glitter and fuzz will keep their hold best when clear nail polish is used as the adhesive. When applying glitter, you can also add a top coat of clear nail polish to keep all the glitter in place. When applying fuzz though, it is not recommended to apply a top coat of the clear nail polish over the design as it will lose the fuzziness. It is always best to have extra polish, glitter, and fuzz on hand for touchups when needed.