Sassafras Creations on Etsy specializes in making jewelry out of old knitting needles. Some I like include the earrings, for $12:

The Knitting Needle Pendant–a perfect gift for a knitter you know–for $8:

And also these Cuff Bracelets, currently sold out, but maybe they’ll make some more:

This is a great way to use up that spare knitting needle you have lying around… (Via Recycled Crafts)