The Hottest Nail Trends Of 2020-Coffin Nail Design This year's hottest nail trend must be coffin nails. Coffin nails are stylish, avant-garde, and sexy. You must try it yourself before you can feel its charm. The coffin nails that have been successful in 2016, after 4 years, will still be one of the hottest nail trends at present. We have collected 10...