Print Your Images Big As Hell!
This seems simple enough to do, but once you see the Flash interface for the Rasterbator, I think you’ll be as impressed as I was.
You take any “relatively small” image (up to 1MB), do any cropping you want and select how big you want it. Then, tell it to do its thing. What you get: a PDF that you can print on any ol’ printer and piece together to make your own giant anything. I now have a giant version of Christopher Walken’s head on my studio wall. Tres sweet.