One of the coolest new tools made using the Flickr API is the Wallpaper Generator created by mikecpeck, which builds wallpaper for your desktop out of any Flickr tag that you specify. You can build wallpaper of a single tag, such as “flowers” seen above, and you can constrain it to take tags from a single user, if you like.

This is Kaptain Kool, n’est-ce pas? Awesome stuff, Mike!