def outdated_images(images, cutoff=10):
    """
    Returns the oldest images to a cutoff (by default 10)

    Returns
        * A list of image names.

    """
    outdated = []
    sorted_images = sorted(images, key=lambda i: i['Created'])
    for image in sorted_images:
        for repo in image['RepoTags']:
            if repo not in outdated:
                outdated.append(repo)
                if len(outdated) >= cutoff:
                    return outdated
    return outdated
