Presented for your lunchtime consideration: Walnut Brains in Chocolate Skulls. Genius use of walnut!

From Street Anatomy:

These chocolate skulls with walnut/candy brains are genius and so well executed for such a small piece of chocolate!  They are hand-crafted by twin sisters from Spain, Ruth and Sira García Trigueros who also happen to run their own little design and illustration shop, Sparganum.