Not big huge, adorable Labradors or big huge, smelly Lab Rats...
I've been playing with Flickr and it's 3rd party applications. Big Huge Labs is a site featuring "fd's Flickr Toys". I'm liking the Mosiac Maker. It allows you to make a mosaic from a photoset, favorites, tags, or individual digital photographs/images ~ including ways to customize colors and layouts ~ !
The only drawback to this tool is you must have a public photostream. If you have pictures listed specifically for friends, family, or private photos on your photostream you won't want to use the Mosaic Maker because the application accesses all your Flickr photos.
It's great fun and an excellent tool for bloggers!
Black & White Doggie
Blue Planet Clusters
Crystal Sky Clusters