I don't have too many specific vendor recommendations for small pots, but I will mention that a lot of vendors will have smaller pots they can recommend if you contact them directly. Most western vendors don't stock a whole lot of big pots because most westerners can't understand why you would want a teapot smaller than 8 oz or so.
Pots in the range of 100-150 ml are pretty easy to find. Pots < 100 ml are sometimes a little harder to find. And handmade pots that are small are often expensive because they're difficult to make.
A few thoughts about where you could look, at least assuming you are willing to spend $60-120 US. If you are looking to spend less, there are options out there too, though they may be more limited.
* Guang @ Hou De can usually find something for you if you give him a price range, size range, and the type of pot you're looking for or the type of tea you're looking to use with it.
* Seb @ http://jingteashop.com/
mostly carries bigger pots on the site, but can probably find pots for you. Their prices are somewhat on the high side, but the quality is generally very good.
* Stephane of Tea Masters sells some small-ish (though not really tiny) pots... I think he could find some small pots for you in Taiwan if you asked.
* Best Tea House in Richmond / Vancouver has a good selection of small pots... many are very expensive, but he has some modern pots that aren't too expensive that he will sell you. No online shopping for this location, but if you call him (more details at viewtopic.php?t=6254
) he can probably email you some pictures. Here's a detail of some of the ones in one of the sections of newer pots he has.
* Fun Alliance has a whole section of < 5oz pots. http://funalliance.com/tea/yixing_5oz.htm
Not really my style, but some folks like their stuff.
* Lau Yu Fat - http://teahouse.com.hk
http://teahouse.com.hk/product/details/ ... eramic.htm
Their English site's shopping links don't work, but the Chinese site isn't too hard to navigate. I think they're a little overpriced for the quality you get, but they do have a good selection of small pots. They speak pretty good English if you email them.
* j-tea - http://www.jteainternational.com/
- doesn't list pots on his site, and I think Josh will be the first to tell you he's not a teapot specialist, but he has some nice teaware in his personal collection, and he's got some nice small-ish pots for sale at good prices (down to $25-30 US), and maybe he'd be willing to send you some photos of what he's got in the shop. Many of them are of unknown provenance, but should be of at least adequate quality. I got these two factory style pots pictured below (actual volume ~ 110 ml maybe) from him, I think they were priced around $25-30, but not 100% sure.
One other tip... make sure you find out whether the vendor has verified the size, and whether the measurement is based on aproximately how much tea the pot will make or its actual volume.
re: zhuni / YSLLC pots, keep in mind that a lot of vendors will include "modern" zhuni pots, or any pot that's made of red clay "zhuni". However, it won't necessarily be true old zhuni. And the ones he has in the $30 are probably a little better quality clay than the $10 ones.
See also this thread, about the more expensive YSLLC "lao zhu ni" pots:
also links to:
And this thread:
Also note that Scott put "zhuni" in quotes, which might not only be because it's a foreign word.