First rust print- washers, screw heads and alan keys all found in an old tin in the garage.
Leaving things sat on the paper overnight made shapes too strong to over print.
Randomly placed pieces, lifted before the rust print is too strong and then re-placed to create overlaps has better potential for me.
I found that spraying a much recommended tea solution added too much colour to the paper, but a very salty solution sprayed from a plant mister released the rust print in a controllable way.
Delicious marks in close up.
Next step is to print on the testers shown above.