There arent any Teacup pigs in Australia.
There are very few varieties of pigs avaliable as pets.
There are people trying to breed miniature pigs here, but this does not mean that the pigs that they are producing are small. Most of the time, 'miniature' pigs grow to the same size of standard pigs, or slightly smaller.
If you want a pig as a pet-be prepared for a large one, because there is no guarentee that your mini pig is going to be 'mini' when it grows up!
http://www.suite101.com/content/tiny-tea ... http://blogs.inlandsocal.com/pets/2009/1 ... Same place as you can get pink unicorns, purple dragons and yellow griffins. Teacup pigs are a myth, they don't exist and are about as real as Pegasus.
When you say tea cup pigs, do you mean 'tea pigs ', as in the brand of posh teabags available in the UK, or something else?