The link is for Wookie's page, you can contact her from there. I believe another YT vendor offers the choke free harnesses too, but can't remember who.
The harnesses do come in many different sizes and you do need to be precise in measuring. I'm sure there will be one to fit your Molliemae, she's about the size of my Ruby.
http://www.yorkietalk.com/forums/members/wookie.html