Quite a few players complain about difficulties with certain devices [apple?] and possibly clients, in being able to change their skin. This mod simply provides a node that you right-click to open skinsdb. I'ts not craftable, it's intended for admins to place.
I have improved the appearance by adding infotext, a rotating figure, and changing skin to try to make it more obvious what the mod does.
I was taight how to use a nodebox by the very helpful @Annalysa