* Use ceramic in winter, or add a cut camelia leaf.
   * Add incense before the guests arrive, too.

[[https://turuta.jp/story/archives/63908|Apparently]], there is such a thing as the 形物七種香合:
   - 呉須周茂叔
   - 祥瑞 蜜柑
   - 瓜
   - 瓢箪
   - 古染付 牛
   - 屏風箱
   - 祥瑞瑠璃雀 (利休 used one like this according to Burkus)