Move over, Vecna! Our custom Tiki Mug of the Lich King holds up to 16 oz of liquid (i.e. a cocktail, the blood of innocents, the tears of those who have forsaken you) or, alternatively, one (1) soul if used as a phylactery.
Its battery-and-magic-powered crystal orb light is a magic item that gives advantage on Performance checks when lit, and there is a secret steam-chamber in the head for dry ice, incense or any other substance of your choice to create a truly chilling smoke-from-the-eyes effect.
Don't explore the Tomb of Horrors without it!