Make Your Own NES Cartridge

A guy named Cory Arcangel took a Super Mario Bros. NES cartridge and erased everything except the clouds scrolling by. You might say, "Who gives a fuck about clouds?" But then you would be stupid. The idea is that you can modify the hard-wired programming into virtually anything you want. I'm not a big enough nerd to figure out how to make something cool. I AM a big enough nerd to try to duplicate his results. He has a very complete write-up of the project on his Cory's Web LOG. I'm going to make sure to print out a hard copy for my project binder.
(via Hack a Day)