http://braillecube.com/
This concept of the Rubiks Cube is an attempt to adjust this timeless toy to the needs of blind persons - the haptic experience make them “feel“ the colors. The first letters of the color are written on the cube in braille in the order of the colors on the original cube. The totally white cube makes it impossible to solve the cube without being able to read braille. It will be as difficult for pepole who can see as it is to solve the regular cube for a blind person. This concept of the cube is fun for blind people and strengthen the awareness how difficult things are, if you are not able to see.