In the "PR-tools" section under "Promo Materials,"
https://1win.run/panel/promo you will find a variety of videos, banners, and GIFs to use for promotion. You can filter them by format, resolution, size, and language to find the ones that will work best for your needs.
If you have a promocode you'd like to apply for, simply send me the ID of your preferred banner along with the code, and I will get that set up for you quickly.