This next piece was a fairly beige, boring piece of cottonish upholstery. It was happy to keep itself soaked with the vinegar.
In the piece below, I tried to use a shibori technique where the fabric was pleated and then tied around a long piece of waffled rebar.
It was not very successful showing the waffle pattern but that is because I did not have very much vinegar or a way to keep it from drying out. It is a synthetic fabric and was very good at drying itself. It started out a bright white and became a rich, creamy ivory. This and the other rusted even more when I came home and hung them on the line. Maybe they did not rust more but the patterns blurred and the rusty parts expanded as the moisture wicked away from the main design.
I think this has some potential, do you agree?