It seems that people are attaching USB memory cards to just about everything. You can buy one with 128 MB in the shape of a duck, sushi, and now, you can get one that has a hanko on the opposite side!
There is something very appealing about hanko to me. Hanko are what Japanese businessmen use to sign their name on important documents. Yes, in Japan, a signature is usually not accepted as means of verification. Or at least that is what I heard.
Sometimes these USB memory combinations fail, sometimes they work out. I think the most functional ones tend to be pens that have USB memory cards in them, but this new hanko version seems like it can serve come purpose, albeit on that I will never have any use for ...