When something can be imagined, then there is bound to be somebody that has actually tried it.
And so it is with the suggestion that a typewriter could perhaps be constructed from Meccano. This fine example is shown here on a blurry scan from the 1932 book of prize winning models.
Meccano could actually be very good to show and experiment with various methods of creating a typewriter linkage from keypress to swinging typebar. The machine constructed by Mr Pantanella does go much further however.
Almost like creating a model of the Notre Dame from matches - definitely taking it to another level...