ORLANDO, Fla. -- Mickey Mouse can now sport cornrows, and Minnie Mouse can wear hoop earrings. The Walt Disney Co. is loosening up its fastidious grooming standards for workers at its theme parks. Under a new policy adopted last month, male park workers, for the first time, can wear braids provided they are above the collar, neatly tied close to the scalp and in straight rows. Female workers, who can now wear small hoop earrings, have been able to braid their hair for years. "It is really becoming a mainstream look," said Melissa Valiquette, manager of Costuming, Cast Image and...