In order to list courtesy posting animals on your site, you'll need to:
1. Create a 'Courtesy Post' in-shelter status in your configurations. It should be configured like the screenshot below with all values except 'In Custody' set to No:
2. Create and save a Custom Entities Report configured to show results for animals with the 'Courtesy Post' status.
3. Generate the iframe code from your saved report and insert the code into your website. Be sure to select 'Always run this report as today' in the date range field.
This will update daily and populate with the animals in the status selected in the report.
You'll want to use the service intake and outcome types for any courtesy posting animals so that you don't get charged for them as adoptions.
You can configure service in subtypes specifically for courtesy postings not to count in your reporting numbers, just make sure you have 'In Custody' and 'On Site' set to Yes. See this article for more information on setting up service subtypes.
You can also have people submit an image with their Owner Surrender application if you'd like. You would link a Google Form to your Owner Surrender Application that allows for the photo upload. GSuite accounts are free for nonprofits and will allow you to have people submit their images through the google form, which will be saved into the Google Drive in the account associated with the Google Form. You can find more information on Google for Nonprofits here and the ability to have people submit images through Google Forms here.
You can add HTML code to the disclaimer section of the Owner Surrender application, so it would look something like this:
The code used to generate the last line of text is:
Please submit a photo of your pet <a href="Google Form URL">here</a>
Adopt A Pet also a has a comprehensive Rehoming program that may compliment your efforts. You can fine more information on that here: Adopt A Pet Rehome