Punch Ice Ring

Pour 3/4 of the ginger ale into a fluted tube pan (such as Bundt®). Place scoops of sherbet evenly around pan. Sprinkle blueberries randomly around pan and pour remaining ginger ale on top.

Cover with plastic wrap and place in the freezer until frozen solid, 4 hours to overnight. Remove pan from freezer and allow to sit for about 30 minutes, then slide ice ring out of pan and into punch bowl.