There's a seller on eBay who frequently offers many Bulgaria match-worn shirts and I currently have 4 of them. This is my favourite because it fits me although I don't plan to be seen in a Lycra shirt outside of my house.
I can't find a photo of Chavdar Yankov wearing the shirt so a photo of somebody else wearing the no.8 shirt will have to suffice. Apparently, this was worn in the game against Switzerland which was drawn 0-0 and there is even a little but of dirt at the bottom of the back of the shirt to add to the authenticity.
I also bought some shorts from the same seller, which have no.14 on it because I got it with Tsvetomir Tsonkov's no.14 shirt.