NASA take astronaut comfort pretty seriously, since an annoying facial itch during a spacewalk could seriously degrade concentration and thus safety.
They have been looking for an improvement on the current technology which astronauts use to scratch their faces inside their helmets. This consists of a pad covered in velcro that they can brush their face against.
Today’s invention is an adaptation of the magnetic window cleaners used in high buildings.
It would have a ptfe coating on both inside and outside magnets (beige) so as not to scratch the visor. There would be a parked position which would allow the magnets to be clipped during eg takeoff. The prong used to contact the face could have several different heads, each with a different texture and springiness. These could be selected simply by rotating the exterior magnet.
Such a system might be adapted for regional itches elsewhere under the suit itself.
