Grimsby Wargames Society is again at the rescue for your caffeine-hands by giving you downloadable Teutonic banners for free on their website.
And you know you don’t just have to use them for historicals. If you like a particular heraldry, you could use it for basically any game. Anyway, from the update:
Teutonic knights, Another a4 sheet of banners now on the main website, free to download.
Uploaded at 600 dpi to give you a great print out.