I run a photo pool on Flickr about slot machines. I started with paytables but expanded to winning combinations.

http://www.flickr.com/groups/slotmachinepaytables/

Great collection of photos, I would love to add to it but I don't ever have a camera in the casino. They don't actually allow them here otherwise I'd love to get pics of my bigger wins, it'd be great to look back on those rare, shining moments...like in your group pics.

I love those pics! Wish I could get some of mine, too!