With musicians like Machine Gun Kelly and Harry Styles rocking nail polish to red carpet events and sold-out concert halls, the cat is out of the bag when it comes to men boasting their love of painted fingernails (even claw-like ones that women gracefully sport!)    To quench men’s growing thirst for painted fingernails – seemingly, their next big accessory – men’s grooming brand Atwater has clawed its way into the nail category one year after it was founded by former Kiehl’s president ...