To play sleazy Reese Feldman in Starsky & Hutch, Vince Vaughn grew a '70s Fu Manchu mustache. Or part of one. Vaughn's 'stache paired with long sideburns and a white-boy 'fro -- was augmented with human hair. But stylists aren't exactly revving up the MACH3s to copy the look. ''Women would like it,'' says Lindy Morris of Cristophe Salon in Beverly Hills, but cautions, ''in a weird way.''