Using lime wedges, moisten the rims of 4 margarita or cocktail glasses. Set aside lime wedges for garnish. Sprinkle salt on a plate; hold each glass upside down and dip rim into salt. Set aside. Discard remaining salt on plate., In a blender, combine the cherry juice, tequila, lime juice, cherries and, if desired, honey to sweeten to taste; cover and process until blended. Pour into prepared glasses. Garnish with the lime wedges. Serve immediately.