Justin Poulsen is an artist, and I don't just mean that in the sense that he takes photos for a living. He's also an artiste who spent hours painstakingly moulding and delivering thumb drives that are exact replicas of his own thumbs.
Poulsen, who is based in Toronto and seems to specialise in dark, visual slights-of-hand, created these literal thumb drives as part of a batch of fairly standard promo-materials-on-USB-sticks he was sending out to potential clients.
But what better way to get peoples's attention than forcing them to plug your bloody, severed thumb into their computer? Of course, it wasn't real blood -- it was red paint, painstakingly applied to silicon moulds of Poulsen's own thumbs.
This is high-level visual-effects handicraft -- though digit-drives have been around for a while, this is by far the most realistic specimen I've ever seen. Maybe he'll start selling them, and we'll all be able to horrify our bosses and potential clients with the same move.