In the early 18th century, Rokubei Moritsune Hata began incorporating incense-making techniques he learned as an employee of Kyoto's Imperial Palace in Japan. 12 generations later, the Hata family continue to create exceptional incense products, including the ceramic cauldrons and charcoal tablets we carry by Shoyeido. Each black cauldron measures about 4" wide x 3" tall.
How to use: place cauldron on level surface away from fire hazards, fill bottom of cauldron with salt, add lit charcoal tablet, sprinkle loose incense on top. You could also burn small uncolored pieces of paper with wish lists, lists of things to let go of, and messages to people you miss. Or lists of people who've wronged you, we don't judge, do you boo boo.
RIP At end of life your best bet would be to befriend an artist who can upcycle the broken pieces.