A little promo idea for you or perhaps something for featured auctions, that I think would be very well supported and cost you next to zero time to do. As shadow colours were introduced later, they have never been in boxes, it is a shame all the "normal" accessories do not have shadow version, why not introduce them? I am sure people would go mad trying to get a shadow wolver tail!
Yeah... it is odd that there are no shadow versions of normal accessories. It'd be a welcome addition to the game, although I'd rather OOO work on big stuff first.