CQ Winter School workshop on rust marks with Alice Fox, I wanted to have a go straight away while it was fresh in my mind. I found a bag with some old tools in the cellar ( mainly some of my Dad's pliers) and some Green Tea bags bought from a herbalist in Iran which I hadn't got round to trying ( good for obesity apparently!)
As before I placed some watercolour paper in a tray and placed tools and items either directly onto the paper or wrapped them in silk or linen with lashings of tea. I then lay a piece of silk chiffon over the top. The photo below was taken just after setting up, the photo above was the marks on paper after 3 impatient days! I'm thrilled with most of the results - I used the tea when it was hot and there's less of the brown staining resulting from normal tea, more variety in colour and tone.