Lemony Grape Cooler

1 lemon, sliced into rounds

1 lime, sliced into rounds

3 cups unsweetened white grape juice

½ cup lemon juice

2 cups lemon-lime flavored carbonated beverage

To Make Ice Ring: In a large ring-shaped plastic container, arrange lemon and lime slices in a decorative pattern along the bottom. Fill with just enough water to cover and freeze for at least 4 hours, or until solid.

To Make Punch: Dip ice ring mold in warm water to loosen. Remove ice ring and place into a large punch bowl. Pour in the grape juice, lemon juice and lemon-lime soda. Stir gently and serve.