Wig from eBay.
Pattern: Simplicity 1419 Lisette with alterations
I cut out two versions of the skirt, the top layer had scallops traced onto it using a saucer.
Zipper moved to back.
The edges of the scallops were zigzagged over twice, I decided they looked neat enough to leave like that.
The outer side of the collar was the bow material, the material was a bit opaque, so for the inner layer I used plain white cotton.