Azure, a Cross argent. Argent, a Cross gules. Azure, a Saltire argent. Some nice mottoes, NOT in Latin, would also be appropriate. The background tinctures usually denote a ruling dynasty, but not always.
Bells are a nice touch, too.
If this article is reprinted in a publication, I would appreciate a notice in the publication that you found this article in the Florilegium. I would also appreciate an email to myself, so that I can track which articles are being reprinted.