Watermelon Champagne Punch

Directions

1. 1
   For ice mold, place orange sliced in the bottom of a bundt pan or other decorative mold; pour juice over slices; freeze until solid, at least 8 hours.
2. 2
   Scoop 3 cups of melon balls from watermelon, using the small end of a melon baller.
3. 3
   Place melon balls in a plastic bag; refrigerate until serving time; cut remaining watermelon flesh into chunks; place in a blender, add sugar and lime juice; process in blender or food processor until smooth; press through a fine mesh strainer; refrigerate in an airtight container until ready to serve.
4. 4
   Remove ice ring just before serving by dipping the bottom of the mold in a sinkful of hot water for about 12 seconds; invert over a plate to unmold, gently slide the mold into punch bowl.
5. 5
   Pour in half of the chilled puree; pour in champagne from 2 bottles; garnish with melon balls, reserving some for individual punch glasses; replenish the punch with remaining puree and champagne as needed.