A few years ago I was in a home with bamboo floors. They were just beautiful, and with bamboo being sustainable, much less guilt-inducing than non-sustainable floors.
Boston-based EcoModern Design has taken the sustainable floor a step further with one of its newer products -- EcoLux flooring. This is a gold-, silver- or copper-leafed, or imitation gold leaf, Forest Stewardship Council-certified hardwood, bamboo, or engineered maple. It is made with metal gilding using a 2,000-year-old technique. The company's David Sanborn previously was a paintings restorer and now uses the same techniques to produce flooring.
The floors are offered with custom border edges, which can be used as wall panels and veneer wallpaper. EcoLux is sold by the square foot, as a border edge or in repeating border edge patterns.