Add a few ice cubes, vodka, grenadine, blue curaçao, and lemon juice into a large cocktail shaker. Shake until mixed and cold.
Pour over a glass filled with ice. Optional: Dip the rim of a cocktail glass in sugar syrup or corn syrup or lemon juice, then dip into purple sanding sugar.
Add any optional garnishes and enjoy!
Notes
These creepy looking wild hibiscus make a great garnish for this drink!