Thanks to taking a class with Shibori Girl I finally got an indigo vat going. Got to love indigo! While you have to set up and maintain the vat, once you have it going there's no mordanting, no heating. Just dip and dye. I tried a variety of fabrics and fibres along with some feathers and a wood bead. The green and gold rovings are onion skin dyed rovings over-dyed with indigo.