Images found here, here, and here.
Alas, the search continues. This was originally going to be a very long and extensive post about various harnesses and the different sources I am using to understand it. This includes Norse mythology (see: American Gods by Neil Gaiman), sexual fetishes and Japanese bondage, and armory. It is interesting, but I think it will be more interesting if I just continuously spew out smaller post, comprising of the images I have found so far, so that I can see how my thoughts change and develop, rather than work on one, huge post. I mean, it will come eventually, the more theoretical stuff, but I feel like I need to read and understand more about it. Otherwise I might as well just give you the Wikipedia article (this one is interesting, if you're looking to learn more about Japanese bondage, and also this one).
On another note, I find it exciting how the harnesses in high fashion, the ones that make it into the magazine, stems from a variety of sources, one of them being so-called "sexual deviance." Will return to this later.