John Olson and his company 3D Photoworks are recreating famous works of art so that persons will visual disabilities can experience them. By using sandstone 3D printers, like the one we have here at the IMRC Center, they are able to print 3D reliefs in color. The reliefs allow the blind to sense the shapes with their sense of touch, as they do sensors specifically identify where their fingers are touching in the painting and then provide auditory feedback about the subject. They print the 3D reliefs in color to help those who are not blind identify and appreciate the 3D renderings as well.
Check out this video.