But only for herself.
She told Grazia:
"I often if not always customise my pieces, and I have several different people working on my sketches. It just depends where on the planet I happen to be. I can work a sewing machine but I am not fast so that I leave to others. I started doing this from the age of 5 as since I am tiny nothing fit.
I am making costumes for a film I am in the middle of shooting and I like to wear them in so I am comfortable. Anyway, a long and boring story, but I have probably made about 100 pieces. I have no production and they are figments of my imagination made real. Hope this helps."
So that's how she does it.
Just one of the many benefits of being an heiress.
[Image via WENN.]