- 1 ounce grenadine
- 4 ounces cherry or pomegranate-flavored vodka
- 4 ounces lemon-lime soda
- 1 empty syringe (can be purchased at any party store)
- Fill the empty syringe with grenadine. Set aside.
- Add the vodka and lemon-lime soda to a cocktail shaker filled with ice. Shake gently to combine, about 10 seconds, and strain into a martini glass. Place the syringe into the glass and allow guests to dispense the grenadine into their own drinks upon serving.