Thorn Dice, The Most Brutal Tabletop Dice In All The Land

Although you'll have to make sure they get a good randomizing rotation in the air before they land-they don't look like they'd roll well-you'd be hard pressed to find a more badass set of number generators than these "thorn dice," available in hard resin or metal depending on how much you'd like to pay. (Platinum accepted at fine smithies everywhere.) [Shapeways via Boing Boing]