Gold Crown Copper Alloy Nail Art Deco Nail decals. These crowns are very detailed. When you are the queen you can wear the prettiest things. Be queen and embellish your nails with these cute crowns. They can be applied to natural or artificial nails. These decals can also be used to dress up other objects and other items. They are very easy to apply and can be done by a nail tech or even yourself. This is a great way to make yourself have a unique look all your own.