PRNewswire -- T.G.I. Friday’s restaurants (www.fridays.com) today announced plans for its May 5 Cinco de Mayo party which include select five-cent appetizers at the bar with the purchase of any beverage from 4 p.m. to 7 p.m. local time for all guests, free food for Give Me More Stripes members, Friday’s-style buttons and the introduction of Friday’s new Blackberry Margarita - the latest in its line of margarita innovation.