Trending Nails Coffin Square Cute Short Acrylic Nails - Nail shape names aren't exactly complicated—square, squoval, ballerina—but picking the right one can be. However, a short square nail can make shorter, thicker fingers look stubby. Nails Coffin Square Cute Short Acrylic Nails / Like coffin nails, these elongate the fingers and are the fiercest shape you can get.