Holographic foil rolls are a cool way to add a pattern to the metallic silver finish, and several options are available. You can find foil patterns like "bubbles", "stained glass", "shattered glass", "shimmering waters", "oil slick", "mirage", "hearts", and more! Many of these holograph foils are also available in your choice of a silver or transparent underlay; the silver is most popular, while the transparent allows your colored ink to show below the pattern.