This design is the result of an experience we ran with 33 students from two high schools of Ioannina, Greece. Students were asked to collaboratively design creative artefacts, most of them carrying messages in braille language. The objects are then shared with blind children in order to use 3D printing as a way to create a new medium of collaboration between blind and non-blind people. The experience so far has been very positive!
You can read more about this experience on its dedicated blog!