Would be cool if every player could make a banner for their family that was very customizable, but rigid at the same time. A new family with no fame would have very few options to make their banner. But as your family gets fame more options/cooler ones become available. Gold would have to be spent every time change the banner to prevent to much switching. Also individual family members' banners could automatically change based of honor and position. With more honor and prestige something like the border would get more fancy, and there could be a crown onto of the banner if King, or a fancy hat if lord.