I have an antique saree I've kept for years with a real metal border that with a few stones is perfect for the Evil Queen collar
I'm just on the hunt for several metres of black duchesse and All The Heat 'n' Bond extra strength for the collar support. I worked out how to get my flat trim to curve nicely and I am sure it's how the original was done.
Looks like this will be The Costume to do
I'm planning on the coat with pants rather than skirt version. Just because I'm planning on posing the heck out of the piece
All this assuming I can find the duchesse for a price I can afford! It'll pack easily at least.