Place 1/2 cup ginger ale, 2 tablespoons vodka, and blueberries in a blender. Process until smooth. Strain if desired, and pour into a shallow container, set aside.
Mix together 1 cup ginger ale and 2 tablespoons vodka in a second shallow container, set aside.
Rinse out blender, then add remaining 1/2 cup ginger ale, 2 tablespoons vodka, and strawberries. Process until smooth, strain if desired, then pour into a third shallow container, set aside.
Place all containers flat in freezer. Every 15-20 minutes scrape around container edges, repeat for about 2 hours or until frozen.
Store in freezer until ready to serve. Scrape with fork as necessary and spoon into serving glasses or bowls.
SNAPPY TIPS: Be sure to scrape sides of container every 15-20 minutes or the granita will be difficult to scrape. Use any type of clear berry or frut flavored vodka such as Pinnacle Tropical Punch or Smirnoff Red, White, and Berry.SNAPPY SUBSTITUTIONS: You can substitute various types of fruit for strawberries or blueberries. You can substitute lemon-lime soda for ginger ale or different flavors of vodka.