Follow these easy instructions from @hanahorack ...and try out some natural dyes. Pomegranate and Onion will naturally bond with the fabric so they are easy to start with. If you cook the liquid for longer it will become more concentrated and be more suitable for using as an ink. The process will work on wool and silk, but not man-made fibres or cotton. Cotton needs to prepared first. You can try this with any plants (be careful of poisonous ones). Many do not give permanent