Customary arts of the Aleut include weapon-making, building of "baidarkas" (special hunting boats), weaving, figurines, clothing, carving, and mask making. Men as well as women often carved ivory and wood. 19th-century craftsmen were famed for their ornate wooden hunting hats, which feature elaborate and colorful designs and may be trimmed with sea lion whiskers, feathers, and walrus ivory. Andrew Gronholdt of the Shumagin Islands has played a vital role in reviving the ancient art of building the "chagudax" or bentwood hunting visors.