This person has reverse-engineered Amazon's cover-image-generating technology and can get it to do all kinds of tricks, like cough up arbitrarily sized covers, covers with discount bubbles on them, and even original covers sent by the publisher and later supplanted by new designs — all by manipulating the base image URL. He can get half-CDs to stick out of it, rotate it at arbitrary angles, and add a ton of chrome to the image. All a testament to how freaking clever AMZN's image-generating engine is.
(Thanks, Shahin!)
