Place the vodka, cream or coconut, and lime juice in a cocktail shaker with ice. Shake well.
Strain into a rock glass filled with crushed ice.
Slowly pour the raspberry syrup over the back of a spoon held over the top of the cocktail, letting the syrup sink through the ice cubes to the bottom of the glass.
Garnish with fresh raspberries.
Stir, sip, and enjoy!