This group of three banners was created for just $10. The horizontal banner is 710 X 90 pixels. The tallest vertical banner is 200 X 620 pixels, while the shorter one is 200 X 410.
The deal with these banners is that they can be any reasonable size, meaning not posters, and are static. This makes sense since it takes more work to create an animated gif banner. However, it’s possible to get banners with transparent backgrounds at no additional cost. If you need quality banners for a very affordable price, this banner creation micro job is one you need to look into.