Rallybound gives administrators the ability to define default content for newly generated personal and team fundraising pages. The fundraiser will still retain the ability to change any of the default elements on their page.
To modify the default elements on the personal and team fundraising pages, log into the admin panel, click "Settings" in the left sidebar, and then click "Campaign Dictionary". The following elements are editable there:
On sites with the media module (legacy) instead of fundraiser feed, you can add a default image or video by navigating to Site Content > Personal Page Defaults, and clicking the plus button in the media module.