A plugin that should be able to remove default headers for a theme and add custom headers based upon the article written by Julio Biason who was inspired by wpti.ps. Create a Page named The Headers. Then upload header images (media files) to the the page. The page may have a visibility of private. Once the custom header images are loaded, just go to Appearance > Header or Customize > Header Image and select Randomize suggested headers. The plugin will display an error notice if there is not a page titled, The Headers. Attribution Thanks to Andrijana Nikolic at Web Hosting Geeks for translation help.