I saw this on DL.TV:

The Rasterbator is a web service which creates huge, rasterized images from any picture. The rasterized images can be printed and assembled into extremely cool looking posters up to 20 meters in size.

The Rasterbator is very easy to use. You can either upload a file from your computer or use any file that is publicly available in the Internet. After you have cropped the image and selected a desired size, the rasterbated image will be sent to you as an easily printable pdf file.

Using The Rasterbator requires that you have Macromedia Flash Player 7 and Adobe Reader (or other pdf viewer).

The Rasterbator uses the excellent iText# library in pdf generation. We extend our gratitude to the development team!

Even though the name sounds like something out of a XXX porn shop, it's actually a really neat and nifty online tool for photo and image editing.

Get to Rasterbating your Images

Source: http://homokaasu.org/rasterbator/

Screens: http://homokaasu.org/rasterbator/gallery.gas