This awesome video has been doing the rounds in the office, and on Twitter the world over. If you've not seen it, check it out.
Printers are perfectly functional objects which are generally considered to work efficiently enough - perhaps with a few creaky, constantly jammed exceptions. It's not strictly necessary, then, to break them apart and rebuild them in a whole new way - especially when that new way uses Lego and felt tip pens. That being said, doing so is an expression of pure, fun-based creativity, and that can only be a good thing, surely?