Philip Mariano Fausto Musica (1877 – December 16, 1938), also known as F. Donald Coster, was an Italian swindler whose criminal career spanned parts of three decades. His various crimes included tax fraud, bank fraud, and bootlegging. However, he is best known as the mastermind of the McKesson & Robbins scandal of 1938, one of the largest financial scandals ever perpetuated by a single person.