First thing you need to know is who would like to have them.
Thus skins are more or less ugly and almost nobody play them today (at least on PC, I haven't encountered so much people wearing thus skins since the beginning of the game.)
And I'm not interested at all to get them.
Not I wanna drop your idea, I like it and it for sure gonna make some people happy... but I don't think there are much of them around.