Mac Mini in an SE/30 case
Now, I'm not sure just why someone would want to do this, but I am nonetheless impressed. A Mac owner in Japan has managed to cram a Mac Mini inside the case of an SE/30, one of the early Macs.
According to his posting, the user managed not only to get the Mac Mini inside, but also to get it running using the machine's built-in 9-inch grayscale monitor.