Yum Sugar brings us a fine recipe for brain cookies! The dough is "arranged in long tubes" and "shaped like a brain." Although the author advises that these special treats be reserved for Halloween, I believe that they are appropriate for pretty much any occasion. Keep in mind that you "will need an entire bottle of food coloring to make the deep red blood glaze."
For recipe details, and a picture of these fine confections, go to the source: Disgust Your Guests with Brain Cookies.