For one of the most complex dye processes there is, the first stage is to dunk your cotton (and it should be cotton – either yarn or cloth) into a bath made up of sheep dung dispersed in water.
As I no longer own my own sheep I was lucky to find a field accessible and with the permission of the owner (all current guidelines being followed of distancing, mask wearing, mixing with others, etc). I was able to wander round the field and collect sufficient for the amount of cloth I want to prepare.
More information on this particular subject will be coming up in the New Year, for now the preparation goes on …