The Museum of Scientifically Accurate Fabric Brain Art: "the world's largest collection of anatomically correct fabric brain art. Inspired by research from neuroscience, dissection and neuroeconomics, our current exhibition features three quilts with functional images from PET and fMRI scanning, a knitted brain, and two fabric pieces interpreting single neuron recording."

Their disclaimer amuses this soon-to-undergo-MRI-scan woman: "While our artists make every effort to insure accuracy, we cannot accept responsibility for the consequences of using fabric brain art as a guide for functional magnetic resonance imaging, trans-cranial magnetic stimulation, neurosurgery, or single-neuron recording."

Found via the scary, slightly incomprehensible Knitting For Nerds which also includes links to knitted nonorientable manifolds (no, I don't know either) and The Periodic Table sweater.