Ben Nadel has come up with a VERY cool demo to simulate a refrigerator magnet using ColdFusion for dynamic image generation and jQuery for DnD. Whether you're into ColdFusion or not, its definitely worth a look and can certainly be migrated to other server-side languages that support some form of dynamic image generation.
Be sure to check it out: http://www.bennadel.com/blog/935-jQuery-ColdFusion-8-Erotic-And-Magnetic-Poetry.htm Rey../