If I weren't all thumbs, I'd definitely give this one a try: Hardware hacker Limor Fried (Ladyada) of Adafruit Industries has released an open source retro Pong clock for two called the MONOCHRON.
She promised that "even if its your first soldering project, it shouldn't take more than 2 or 3 hours to put together" but it probably doesn't include time spent in the ER for soldering my fingers.
Links: MONOCHRON on Vimeo [video clip] | Project Page | Open source files at github - Thanks Phillip Torrone!
Remember this:
http://mocoloco.com/archives/001766.php
2 bad that they:
"After 5 successful years, Sander Mulder en Dave Keune have decided to end their cooporation as Buro Vormkrijgers."
http://www.burovormkrijgers.nl/