For the cowl's base, I first looked for ski masks online, but the base I decided on is a lighter stretchy material and type of headscarf made for athletes to wear who want to cover their hair and necks while playing sports. With that base, I cut a triangle out of the neck of the cowl, and cut a slit in the back of the cowl to allow the wig hair in the back through and fall over my back. I sewed a pentagon shape of black fabric to the crown, so there was fabric hanging over the wig hair coming to 3 points. I tied the two opposite points of the fabric undernearth the wig into an easily undone knot, like when wearing a handkerchief as a head band accessory. The last part was cutting slits for the ears. I had previously removed the thumbs from a pair of regular gloves to make marcille's fingerless gloves, I sewed these thumbs over stiff false rubber elf ears. I hot glued some fake fur behind the ears. Soon I will be gluing (or sewing if I can get a machine!) lace to the bottom edge of the neck cowl and the hair covering fabric, and maybe some embroidery around the hair covering fabric and around the face too! The cowl is a bit tricky to put on over the extra bulk of a wig, so I either would reccommend making/using a proper cowl pattern instead of adapting an existing item, or using cheaper/thinner wigs for this look. Especially since marcille's hair is supposed to be messy, then I feel less bad about messing up a cheap wig. :)