Here is my first attempt at using RinsAWay, similar to Solvy. The idea is that you place fibres, scraps of fabric and other objects on the soluble plastic, cover it with another layer of plastic to keep it all in place, then stitch through all the layers to create a kind of fabric. As in the photographs here.
1. The soluble plastic comes on a roll -- you just cut off as much as you need.
2. Next you place the fibres that you want to turn into fabric on the plastic sheet, then cover it with another layer of the plastic. These fibres are the ends of threads I used in my Moon Rock embroidery. I saved them all in a zip-lock bag as I was stitching.
3. Place the sandwich of soluble plastic and fibres in an embroidery hoop to hold it firm.
4. Most people machine stitch through the layers, using a free-hand motion. My ancient sewing machine doesn't have the required darning foot attachment and the tension is a bit suspect, so I chose to hand stitch in a spiral pattern. It was more time consuming, but fun. Next time, I might try a more intricate pattern, more decroative thread and smaller stitches. Or find someone who has a better sewing machine I can borrow.
5. Lastly, I ran the assembly under cold water and dissolved the plastic layers. The resulting lacy mesh is pretty, but quite fragile. It also required several rinses to fully remove the soluble plastic residue, which got all over my hands and the sink. Eewww.