Sorahn wrote a script to power Haloscreenshots.net; you enter your gamertag and it pulls down all your screenshots from Bungie.net. For the next step, it assembles those images into a mosaic composed from the submitted images. The first mosaic is up now, check it out!

UPDATE: sorahn had to make a change to how the archive stores images in preparation for making the large mosaics; please feel free to head on back to the site and resubmit your gamertag.