Okay then.
ThinkGeek does these things every april 1st, and they always get calls from people who didn't get the joke and actually want to buy the item.
Last year they got so many orders for the 8-Bit Necktie they actually wound up making it.
http://www.thinkgeek.com/apparel/hats-ties/9352/
Some of you may have seen me wearing it at my birthday party. Only one of you actually did, though.