Well, it really is an old feed that I used for another project but thought I could spice it up a bit. It's a photo feed from flickr but I've rewritten it load the middle size image as opposed to the thumbnail and changed the enclosure from the middle size photo to the large size for a hefty payload.
Said feed - http://www.croncast.com/flickr.rss
The posts in this feed are only the title and photo, no description text at all.
Example photo size in feed
Example of original photo size in enclosure - You'll have to click this to see it.