cRPG is a modification for Mount & Blade II: Bannerlord. It adds persistent multiplayer character stats, hundreds of unique items, an online campaign, clans, duel ladder, a co-op game mode and a few more things.
The Ravens of Valhalla display their custom USA Trump Viking faction banner on the Heraldic Barded Warhorse.
Clans can bid at auction in the marketplace for the right to upload/use a custom banner for their faction.
Screenshot Credit: Jacaroma
Making banners great again