In a food processor or blender, crush cookies until fine. Set aside. In a mixing bowl, beat cream cheese, butter and sugar until smooth. In another bowl, mix pudding and milk until well blended. Fold into cream cheese mixture. Fold in whipped topping. In the flowerpot, alternate layers of cookie crumbs and pudding mixture, ending with crumbs. Chill several hours or overnight. Decorate with silk flowers and gummy worms.