Tea Cup Yorkshire?

Here is a list of breeders of Yorkies by area in Austrailia. I hope it helps!
References :
http://www.dogs4sale.com.au/Breeds/Yorkshire_Terrier/Breeders.htm

There is no such thing as a Tea Cup Yorkie, or Tea Cup anything for that matter. Anything that is under 5 pounds is below breed standard and will have to be watched closely for health problems associated with breeding to produce lower weight dogs.
References :

http://www.ineedtobekicked.com
References :

Be careful if a breeder advertisers "Teacup Yorkies" - check out some Yorkie facts here - http://www.dog-obedience-training-review.com/yorkshire-terrier-information.html

The most important thing when buying a Yorkie of any size is that you get a healthy one - good luck!
References :