These are part of the Tingeling Halloween Couture 2009 collection. They're called Ragdoll Stockings, they're incredibly unique and there's a lot you can do with them on your medolls. Their original price is 14$ but if you're interested in getting them, you'll have to pay a lot more. I recognized these stockings from a few photos of Emilie Autumn. Unfortunately, I have no idea about the real designer.