On Dutch tv, there was a show some time ago about people designing and building specific tools for people with disabilities; like there was a special floatation vest for a girl with a muscle disease for whom regular flotation jackets didn't fit; and a guy in a wheelchair also with a muscle disease who liked photography and needed some way to mount his camera on his wheelchair and operate it; and other guy whose Playstation controller didn't fit in his hands etc.

It was right up HN's alley, they should throw some subtitles on it and put it on Youtube. So many engineers who love to build stuff for causes like this.