Add ice cubes to a cocktail shaker.
Pour in black vodka, coconut rum, coffee liqueur, Frangelico, fresh lemon juice, grenadine, and fruit juice.
Shake vigorously for about 15 seconds.
Fill a rocks glass with crushed ice.
Strain the mixture into the glass using a Hawthorne strainer.
Optional: Use the back of a bar spoon to layer grenadine at the bottom for a spooky effect.
Garnish with lemon, blackberry, or any Halloween-themed touch.
Serve immediately while cold and eerie.