hmmm, I was imagining something entirely different: Moving lego block around to create a tactile braille 'screen'. (see https://en.wikipedia.org/wiki/Refreshabl

hmmm, I was imagining something entirely different: Moving lego block around to create a tactile braille 'screen'. (see https://en.wikipedia.org/wiki/Refreshable_Braille_display https://en.wikipedia.org/wiki/Refreshable_Braille_display ) Making one of those from lego blocks would actually be a really cool project; and can probably be done for way under the cost of a real one.