New Orleans announced plans Monday to impose a $10 cover charge on all nonresidents seeking to enter the city. 'For $10, visitors will receive unlimited access to all bars and nightclubs, three drink tickets, and a free 'Certified Muff Diver' T-shirt,' said Mayor Marc Morial, flanked by a pair of the city's bouncers. 'Those who want to leave the city and return before 2 a.m. can get their hand stamped for readmission.' Women who flash their breasts will be admitted at the reduced rate of $8. 