I use a lot of fanart/doujin icons because the anime for Sengoku Basara has a couple of episodes where the art is absolutely TERRIBLE and he's not really in other episodes. I also suck at making icons so I tend to try to use others, and people don't really make a lot of icons for him.
Sengoku Basara's franchise is odd but nice in that quite a few doujinshi artists also do work officially. While I did label some of the b/w icons as being from doujinshi, some of the ones labeled as being from the same artist were also for official anthologies (Regulus, Kiz/Nari). Or in MicroMacro's case, they later went on to do the TV Basara manga, and a couple of the icons are from that. If you wanna know what the icon source is, just ask me and I can tell you. \o/