premise: In Kuching look for Iban pua kumbu (hand-woven rugs), wooden hornbill carvings used in rituals, and silver jewelry, woven Bidayuh baskets, Orang Ulu beadwork and woodcarving, and Punan blowpipes and mats.
hypothesis: Woven baskets and beadwork are some of the things that are not used in the rituals.