The most adorable haha. Which sweater do you want to recreate? She wears a couple. You can find big sweaters at thrift stores. You could also look for men's sweatshirts since they'll give a really bulky look. The only problem is finding one that's a turtleneck. Potentially if you get a hoodie, you might be able to create a turtle neck and make it double over so that it covers the seam...
What's this for? It's a wig.
What's it for? To disguise yourself from yourself.
So what's it going to be then, eh?
Follow the cosplay twitter! @FyeahCosplay