The House of Hoi An Traditional Handicrafts is a silk shop with a first-floor 17th - century silk loom and a working, machine-powered cotton one. Upstairs, there are trays of silkworms feeding, then a rack of worms incubating, and then a tub of hot water where the pupae's downy covering is rinsed off and then pulled, strand by strand, onto a large skein. They have a great selection of silks, both fine and raw, in many colors and quantities good for clothing and for home interiors.