Mother Maiden & Crone Backflow Incense Burner 18cm Incense Burner £35.00 New stock arriving soon. Mother, Maiden, & Crone Backflow Incense Burner 18cm The Maiden, the Mother, and the Crone Incense Burner The Maiden, the Mother, and the Crone, each representing one of the three phazes of the female life cycle, the waxing, the full, and the waning of the moon. For use with Backflow Incense. Backflow Incense is specially designed for incense burners that have a reservoir to channel the smoke. It pours down the incense tower with dramatic effects. Backflow incense cones are specially designed, they are cones that create a thicker smoke that cascades down from the cone rather than rising like traditional incense cones.