We started of with Tyvek, painting it and then sewing, if we felt like it. Then we ironed it and it distorted. As this is a totally new technique for me, I was not sure what would happen and was not able to predict and try to control it. Neroli told us that it is unpredictable even when you have some experience, so I will have to experiment a bit more to get some idea of what to expect even if I can't absolutely control it.
We then played with various layers of synthetic fabrics, free motion sewing and a heat gun. Some ladies tried very intricate images, I just mucked around.
Here are some images of before and after the heat gun.
Here's mine. The shiny bits are Textiva.
We had a few very strict safety rules: to NEVER point the heat gun at a person; to wear a gas mask (even though we worked outdoors); to use the wooden tool to keep our fingers away from the heat.
I like some of the effects and the unpredictability of the process. I am currently very interested in layering my work, so it suits that. But I don't really like the actual feel of the fabric after is has been heat treated, it is usually very hard. I'll have to think about where I might use it and how much handling it would get.