Just in case you missed seeing this knitted brain in the papers over the last few weeks, here it is. 
Karen Norberg, a psychiatrist at the National Bureau of Ecconomic Research in Cambridge Massachusetts, has knitted an anatomically correct model of the human brain in wool.  The cortex of the larger -than- life brain, which took a year to make, is correct to the nearest stitch.
To see the brain in more detail, follow this link...