You can get specialty kydex in all sorts of coulers and prints. It is used for all sorts of industrial interiors and stuff like paneling in airplanes. I saw some cool woodgrain stuff. It is fairly cheap to. I would like to do my kitchen in it.
The only problem is the minimium order is a huge sheet like the side of a house.
That would be a lot of clear sheaths. The sheath makers here should check it out though they might save some cash on a 10 year supply.