Make a solution of vinegar and iron water a day or two ahead of time. Use 4 cups of water to 2 cups of vinegar.

Place it into a plastic tub and add the old rusted nails.

Soak the cotton in 2 cups of soy milk and 8 cups of water.

Weigh it down with a plate.

Soak your clean leaves and flowers in the rust water. 

Place the plant material on the fabric.

Cover it with plastic wrap.

Fold the top down, and roll it up on a wooden dowel or stick.

Roll tightly and wrap the entire piece with jute.

Place your bundles on top of glass jars in a slow cooker, with a bit of water on the bottom.

Steam on low for 3 hours. Remove and cool.

Unravel and reveal your masterpiece.

Hand rinse in the sink to remove any excess plant material and rust/vinegar residue.