Chaturbate has shots in iframes. Gotta use iframes though. No direct thumbs or pics you can use. Except a few banners. They have an API though. Maybe able to use that, But I haven't tried it yet.
Examples. See below related videos and you can see the iframe of girls in chat.
http://icadult.com/amateur-porn-7/
Also doing with my blogs.
http://blackonwhitelesbian.com/?p=342