Somebody else out there shared our same feelings and created a little DIY pong clock. The interface looks identical to the manufactured model, but the outer casing is a bit more ugly. The clock was made out of an old Dell Inspiron 7500 and a LOT of duct tape. It looks fairly functional—after it boots up, of course—but I wouldn't dare hang something that ugly on my walls. Craftsmanship, anyone?
Home-Built Pong Laptop Clock [Techeblog]