I know that some folks here have a hard time finding the stuff, or if they do it is way pricey. Also it struck me as being a good thing to be able to make it to a particular size rather than trying to cut pieces down or paste them together.
Now mind I haven't tried this yet having only just found it. i thought that presenting it and getting the group brain onto it would be the thing with this.
"It is lightweight, high opacity, good quality writing / printing paper for airmail. Generally produced in white, off white or a pale blue for stationery purposes, usually below 40 g/m2 for reasons of postage costs."
40 g/m^2 is about the weight of a medium quality tracing paper, about 25 lb paper as it is usually measured, though more paper supply places are going to metric. So I imagine drafting vellum would do quite nicely, and newsprint would probably work near as well. I have about 868 bajillion kinds of paper about, so I wil play around and see what does well.I a going to experiment with cling film and those clear plastic trash bags to see which works best. I will try shopping bags too, though I don't have a great deal of hope for them for a number of reasons.
NightMist off to noodle around that site, and then play with paper, plastic and high temperatures.