On this day, July 29 1954, J. R. R. Tolkien's "The Fellowship of the Ring" was published. Here are some fan made flags from Middle Earth.

Of course Tolkien devised an entire heraldic tradition for his books. Wikipeadia page about it

I found the flags here. I do not know where they originally came from: https://www.etsy.com/se-en/listing/1491383712/lotr-middle-earth-collectible-flag