I found a new Gnome Easter egg the other day. Just when I thought I knew about all of them (yeah, I know, some Gnome developer is sitting back in the corner laughing about all the Easter Eggs we *don’t* know about!) I find a few more.
This one will require you to logout and log back in, but its worth the slight hiccup.
At the login prompt, where it asks for a username, enter:
The username and password prompt will then follow as normal, but you’ll get a quick surprise before you’re logged in.