Flickr Rainbow
Originally uploaded by Just_Tom.I made an applet called Flickr Rainbow to illustrate the latest images from Flickr tagged with colours of the rainbow.
It's made with Processing, but it also needs a bit of PHP to break out of the Java sandbox. The PHP is quite short - one file relays a Flickr API request via my site, and the other fetches a square Flickr thumbnail image given an id and an owner. Hopefully they aren't too insecure!