Some men bring their wives chocolates and flowers, mine brings me rusty pots.
And this is what I do with them:
Mix a solution of water and a good dash of vinegar, soak fabric.
For this first lot I used cotton and thin muslin, but have another lot rusting now with taffeta, sheers and organza, just to see what it does.
Lay the wet fabric on the rusty surface, don't flatten out, leave it a bit scrunched.
Cover with a plastic bag and leave.
How long to leave I think may depend on how rusted the iron is. I have a friend who made some and left hers for several days.
My pieces happened overnight, the vinegar may have accelerated the process or I just might have had more rust to start with.
This was my rusted cast iron cook pot, I wrapped the fabric around the pot, the fabric was solid brown on the base where the pot rested, then very little on the sides where it wasn't hard against it, then a bit on the ends that I tucked into the inside of pot
This next was a piece of flat sheet iron, it worked well as you can see from the second photo:
We also had a couple of old chair bases sitting around the yard, I used the metal tops where the seat cushion is normally attached:
Next was some old rusted chains:
this is the piece from the chains:
I was very happy with my clothes line full of rusty fabric and will be making more. I think it could be really great in an art quilt/