So, after all the tinkering, I had to write it myself. I couldn’t get anything exactly right, so I wrote something with Flickr APIs to generate the HTML that I wanted, as well as following Creative Commons best practices for attribution. It’s just a stand-alone PHP CLI script, with hopes and desires to grow up to be a Word Press Plugin.
The code is up on github, flickr-share-with-attribution, under the 2-clause BSD license.
My awesome cats Angel, Lucy and Veronica demonstrate here what the results look like (results may vary per theme):