Use thumbnail markup and style with custom image and link?

Hello!

I’m trying to show an event feed from facebook on my website and id like to use the style and visuals of the post thumbnails for the event cover images. I pretty much want to use the “featured large” thumbnails from the “Blog Posts” shortcode with custom images and link urls.

All the digging ive done has shown that i pretty much need the events to be replicated as posts in able to use the wordpress/enfold functions for generating a thumbnail. Is there a way to make a temporary post and use that to generate a thumbnail? I’ve searched the post-thumbnail-template and loop-index files but cant seem to find a way. I really dont want to have to duplicate the events from facebook as posts…

Any help would be much appreciated, and i’m using a child theme so major alterations are possible. Ill be using a custom avia-template to position the elements.