The stencil is made from medium weight Pellon interfacing. The premise is that after MANY pulls with thickened dye, the dye will eventually go through the Pellon. I will cut some shapes into the Pellon to allow the dye to go through on the first pull and I will use hot soy wax to block certain areas to resist the dye. Here is a photo.
So you can see the holes that were cut and the lines in hot soy wax that will resist the dye
The premise is that the dye will go through the holes and gradually go through the Pellon except where the soy wax was applied. Each pull I add more of another color and the prints start to change. The circles (holes) change on the first pull and the Pellon part eventually change color.
Above you see immediately that I added red and in the bottom two prints the "body" of the print (the Pellon part) eventually changes.
This the Pellon stencil AFTER all the prints are made and the stencil has been washed. You would never believe it looked black before I rinsed it.
This technique could be used to show progression, development, decay, the passage of time; use your imagination.