Chill juices and ginger ale thoroughly; prepare mistletoe ring several days in advance. Pour chilled juices and ginger ale into bowl at last minute; add ice ring. MISTLETOE RING: Pour 3/4 ginger ale into 6 ounce ring mold and freeze. Arrange mint sprigs on ice in ring to simulate mistletoe. Add 3/4 water. Freeze. Fill mold with strawberry sherbet; cover tightly and freeze solid at least 24 hours at zero degrees.