I happened to come across this doormat from ThinkGeek.com and I find it hysterical.
Any techie, particularly those coding web pages, would love this. It totally cracked me up. It's like our own language. You see, "127.0.0.1" is the standard address for "localhost". If you're writing a web page on your local machine and want to view it in a browser you would type http://127.0.0.1 in the address bar. Get it?
ThinkGeek has some great presents for techies. I love my rm -rf /bin/laden t-shirt. I don't think they sell that anymore.