Satsubako
Both a name of a Temae and a utensil. This temae features serving two varieties of koicha; one which the host has prepared and placed in chaire, and one which the host has unexpectedly received and placed in a natsume. Both are stored in an unlacquered paulownia box that gives this temae its name.
In some other schools a satsu is used instead of a natsume.