I play nobility, but I also have numerous Houses that are basically old and wealthy families with no peerage (commoners). I just designed some simple Coat of Arms (shield only) for this group, less impressing than the high nobility CofA but still a show-off. If you don't play this way, they might suit iwell in a museum/library/gallery or just as regular décor at home.
They are free to grab from
my blog. City Living EP is required.