Tannin-rich dried myrobalan fruit produces yellow with aluminium, khaki with iron, and pale celadon-like green when layered with indigo.
Dried pomegranate peel used as a natural plant dye. Alum, copper and iron mordants produce yellow, brown, deep gray and black tones.
Tannin-rich Japanese sumac galls used as a natural plant dye. Iron mordanting produces a soft brownish-gray traditional Japanese color.
Himejoon fleabane was used to naturally dye silk thread with aluminium, iron, copper and titanium mordants, producing four beautiful colour variations.
Silkworm droppings, called sansha, are used to dye iron-mordanted wool before the fibre is cooled, dried, carded and spun into a deep-coloured yarn.