I forgot to make a topic about this a few days ago, but we have our own banner in a custom banner pack made by Augy and some other dudes.
To download, check out:http://forums.taleworlds.com/index.php/topic,226283.0.html
Download the latest one.
Read the read me on how to install it.
Our Banner is the purple/Union Jack one with the TRR Crown and Lion