When I was playing Victoria 2 I couldn't help notice that many flags were not historically accurate or censored so this mod is devoted to making all the flags correct or at least some what closer to its historical counterparts.
Here is a preview of Ukraine
this one is better Blog.kievukraine.info
I was going to go with that but i feel it ties to closely to the USSR and i wanted to go for another variant that fitted the nation as being an independent nation rather a satellite