Turtletoes, artisan-dyed, really self-striping, exact-match-twin-skein sock yarn from Turtle Purl is back in stock. Some even has a little glitter.
This yarn, dyed in New Brunswick, makes to-dye-for-socks, of course, but you can also experiment with other truly unique projects, like the Lokken kerchief by Megi Burcl (available for purchase at the Interweave pattern site here--it's even on sale right now). This pattern uses the striping yarn to create an almost plaid appearance. And it has little fringes. What's not to love?