So after a good couple years of having a blast playing with plastic bags I finally got around to fusing them! I don't know what took me so long I guess just having too much fun weaving them. The tutorial on the etsy blog is great, you hafta check that out.
This time around I tried a super simple coin purse. It's convenient to use the plastic sleeves newspapers come in if you're making a teeny little bag like this.
Once you cut the sleeves open and lay them flat you can fold it into little rectangles 8 layers of plastic thick. I tried using less layers like 3 or 4 and it ended up shriveling up and getting holes in it so I'd say go with the 6-8 layers they recommend in the etsy labs how-to.
Another possible reason why my first one shriveled up is I had the iron set too high. I changed the setting to nylon, folded it a few more times and voila success! : )