Steampunk Decoder - Scratch a Steampunk, find a geek obsessed with Egyptian hieroglyphs, Sherlock Holmes mysteries, Babbage difference engines and... code. Code, pure and simple. This amazing steampunked decoder by Crankbunny is so nice it makes us feel a little sick. The custom message is coded up onto a discrete slip of paper that is hidden inside the card - it's the perfect greeting card for the perfect geek. Or secret agent. Or you.