If using sanding sugar or sprinkles rim a glass with a wedge of lemon. Roll the rim of the glass into the sprinkles or sanding sugar in a shallow dish.
Add the strawberries to a cocktail shaker and muddle with a cocktail muddler.
Add in the vodka and grenadine and shake well to combine.
Fill the glass halfway full with ice. Strain the strawberry vodka mixture into the glass.