1. In a large pitcher, combine 1 bottle dry white wine, 1 cup seltzer, 1/2 cup Calvados and 1/4 cup agave; stir until well combined. Chill in refrigerator. When ready to serve, stir in 2 cups ice, 1 cored and sliced Granny Smith apple, 1 sliced star fruit (optional), 1 cup halved green grapes and 1 sliced lime. Pour over ice.