Just something I was thinking about - it could be nice to have a way to waterproof either untailored materials, or finished articles, other than waterproof vinyl. Don't get me wrong, vinyl is definitely themely, but I also think it'd be slick to be able to commission, say, a cotton jacket, and then have it treated and waterproofed. A machine like the nanopress seems like the best bet, where the cost varies with the item in question, and you have to have some skill to be able to use it, so people couldn't just go and waterproof everything in sight. I also figure only some materials would be allowable - doesn't make a lot of sense to be able to waterproof a lace nighty or whatever. The actual IC mechanism could range from something as simple as a wax coating, up to a water-repellent nano-treatment, or whatever. Just an idea!