The Plug Treasure Hunt (2008)
I made you a treasure hunt. So when you're bored on Friday at 4:30 p.m., and you're thinking, What is there to do on the world wide web? this is your answer. And you're welcome. I can't tell you what waits for you on the other side, but I can tell you that there are three challenges total, so at least you'll stop complaining for a few minutes.
You may also be interested in the 2009 Treasure Hunt