Coffin-shaped nail designs, also known as ballerina’s nails, are part of a new “cool girl” high fashion aesthetic that became very popular after celebrities like Kylie Jenner, Rihanna and Blac Chyna started using them frequently. Choosing the shape of your nails can be difficult. There are so many nail shapes to choose from, and they’re all beautiful. If you’re looking for a versatile yet chic style, look no further than coffin nail art.