Sorry I'm sorta not here more right now, but It is national novel writing month and my plate is plenty full with that.
But I want to get something done with the mapping challenge, and my idea involved a transparency that could be illustrated on but seen through... but the problem seems to be that the closest thing to that was a pack of 100 sheets that cost thirty dollars.
For an experimental mapping idea that's a bit pricey. Any thought would be appreciated but I may just have to settle for doing it on opaque papers to test the design idea and then trying differant transparent mediums to figure a few details out. If I think it would look decent I may make a few presentable maps with the technique later on the expensive stuff.
Make friends with a school teacher - they get transparency paper for free. ;)