These are Hair Ornaments, in capital letters.
Kanzashi (traditional hair ornaments) change with the month and according to the experience of their wearers. The folds and twists of wired silk are formed into chrysanthemums, willow, wysteria, plum blossoms, fans, bamboo, and other shapes indicative of the season. The kanzashi below is worn in December and is ornamented with game paddles, charms, and shapes evoking mochi rice cakes made at this time of year. The two white panels are blank until the maiko asks two of her favorite kabuki actors to sign them.