If desired, rim your martini glass with black lava salt or coarse black sugar.
Fill a cocktail shaker with ice. Add the cider, pomegranate juice, lemon, vodka, and activated charcoal, if using. Shake to combine.
Strain into prepared martini glass. Add a very, very small amount of dry ice, if desired and be sure to wait until the ice fully dissolves to drink or serve as dry ice can be dangerous if it has yet to melt.
