Fa’s knife: I carved the slate roughly with a knife to the willow leaf shape, then used a stone to smooth the edges and sharpen the point. I made a slit in the top of the bone with my other knife and cut off any sharp edges to create the handle, testing the blade fitted in the slot. Some watercolour paints were used to make the blue bands on the blade, and then it was left to dry. I slotted the blade into the handle, then wound the strip of leather around the handle, leaving a little bone exposed at the end. By AquaHuskey.