Hermès, the French fashion house famous for its luxury leather goods, hosted a fancy fete on Nantucket Saturday for the Berkshire Hills Music Academy. Guests at the event, held at the seaside spread of BHMA founder Kay Bernon, included longtime Democratic consultant Bob Crowe, congressional candidate Joe Kennedy III, Sweet owner Courtney Forrester, florist Simone Winston, and Elena Matlack, wife of The Good Men Project cofounder Tom Matlack.