To make a stinger cocktail, you'll first need to gather your ingredients. First, mix together the gin, vermouth, and cranberry juices. Then, add the vodka, grenadine, orange juice, lime juice and simple syrup to the cocktail shaker and shake vigorously. Finally, pour in the club soda and stir to combine. Strain the drink into an ice-filled martini glass. Garnish with an orange slice and mint sprig.