Ingredients:

2 1/2 cups lemon-lime soda (such as 7UP or Sprite), chilled
1 cup ginger ale, chilled
2 tablespoons grenadine syrup
4 scoops vanilla ice cream
Maraschino cherries, for garnish
Lime slices, for garnish
Instructions:

Mix Drink:

In a pitcher, stir together the chilled lemon-lime soda, ginger ale, and grenadine syrup.
Assemble Float:

Divide the scoops of vanilla ice cream between 2 fountain glasses.
Top each with the Shirley Temple mixture.
Garnish:

Add 1 or 2 maraschino cherries and a lime slice to each glass.
Serve:

Enjoy immediately!
Additional Information:

Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 2 drinks