Etsy seller MyAlterKnits sells scarves in the shape of the sonic screwdriver from Doctor Who -your choice of the 9/10th doctor's screwdriver or the 11th. She also has a few related knitted doodads in her shop like a Cyberman helmet hat and River Song's TARDIS book cover. For those that don't dig the Who, she sells other geek goodies as well.

Link Via The Mary Sue