Add 1 oz of grenadine to each glass along with 2 oz of vodka.
Top each glass with lemon-lime soda.
Garnish with a lime slice and cocktail cherry. Add a straw and serve.
Notes
If you prefer, you can use ginger ale instead of lemon-lime soda or a combination of the two.If you want your cocktail less sweet, you can replace the lemon-lime soda with club soda or lime-flavoured sparkling water.For flavour variations, you can use cherry, lemon or lime vodka.I like to serve my cocktails with a straw and let each guest stir their own, but you can stir before serving if you prefer.