Dungeon Dressing: Canopic Jars

Canopic jars are used exclusively for the storage of human organs. Often canopic jars are associated with the ritual removal and storage of organs, possibly to preserve the deceased from arising in an undead state. In rare cases, however, they may be involved in rituals with the opposite purpose. An experienced cleric or magic user should have a good chance of determining which is the case. Most necromancers will know at a glance.

Image courtesy of Wikipedia