WOW..it's such a shame she wants to make a fashion statement AND sell puppies - That is just really scary !!
I think a nice long email explaining the care and expense of small yorkies would be a GREAT idea ...
www.mylittlemia.com has lots of info for those that want a tiny yorkie and know nothing about them - It might be worth looking at her site..but I think you emailing her personally may have more of an impact - Good luck