Women made needles from the wingbones of seabirds. They made thread from the sinews of different animals and fish guts. A thin strip of seal intestine could also be used, twisted to form a thread. The women grew their thumbnail extra long and sharpened it. They could split threads to make them as fine as a hair. They used vermilion paint, hematite, the ink bag of the octopus, and the root of a kind of grass or vine to color the threads.