'Najeon Box, Holding Craft' is an adult workshop at the Seoul Museum of Craft Art, running Tuesdays July–November 2026 (20 sessions in total). October sessions are on the 6th, 13th, 20th and 27th, 18:00–19:30, with 20 adults per session in Exhibition Building 3, first floor. The October application window opened September 29 at 10:00 via Seoul's public reservations. Only one participant per ID and one session per person is allowed; repeat enrollment after July/August attendance or duplicate bookings may be cancelled. October 27 availability was not verified.