An earlier post showed how to create an embedded Flickr slideshow.
That example dealt with a slideshow of photos from a single particular user. You can also make them for particular photo-sets. Here's one of all my photos of neon:
Here's the code:
<iframe
align=center
src="http://www.flickr.com/slideShow/index.gne?set_id=1203925"
frameBorder="0"
width="500"
scrolling="no"
height="500">
Y'all ain't got no frames!
</iframe>
In this case, we use the ID for the photo-set instead of the user ID. It's in the URL of any photo-set page on Flickr.