Trending Edgy Nails Coffin Black And White Acrylic Nails / Acrylic gel coffin nail designs are trendy and glamorous, so plenty of women are eager to have them. For winter, deeper shades like glossy black and midnight blue perfectly complement the freezing temps and 4 p.m. Edgy Nails Coffin Black And White Acrylic Nails - Dragon design perfect for summer nails.