I have a lovely 4lb. teacup Chihuahua, How can I find proper apparel for her? ?

Arghhh, there is no such thing as a teacup size in any breed of dog. What you have is the runt of the litter. I'm sure some places have clothes for chihuahuas. Try the online stores.
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You could try making your own?

Keep looking on websites, and find ones that have actual dog measurements listed, so you can measure your dog, and assess right then if the clothes will fit or not.

Although I have to mention, most dogs are fully equiped with clothing from birth, if they're inside. Outside on cold days, some dogs do better with a bit of a blanket/jacket, but really, it's more for aesthetics than for necessity.
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DOGS DO NOT NEED JAMMIES.

Teacups do not exist. They are simply the runt of the litter. It makes me giggle when people are so proud that they have one of those teacup dogs and not an average one. Those "Teacups" also can have serious health defects, like brittle bone disease and other illnesses.

If it is cold outside than get a blanket over your dog. They sell them on the internet. It's fleece with arm and leg holes. Dogs don't need to be clothed. I hope your chihuahua is not a purse dog. They have 4 legs.

Good Luck.
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Maybe try buying baby doll clothes?
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My beautiful brain.

Have you ever heard of Webkins? This may sound a bit silly, but please bear with me. A webkin is a kind of plush toy that comes in cats, dogs and other animals. They also make clothes to fit these plush toys–clothes that will fit a small dog or cat.
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I've seen people buying Webkins clothing for their pets to wear.

Google for xxs dog appare or something similar. My male and female chihuahuas weigh close to 4 pnds and that's the size they use or sometimes xxxs..
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walmart has some xxs clothing , I recently saw these, but you can ask petsmart or target to order xxs for your dog and i am sure they would order for you. you can also order xxs online here are a few links:

http://www.littlepamperedpets.com/DogClothes.html

http://www.topsellingpetsupplies.com/dog-sweaters.aspx?ovraw=xxs+dog+clothing&ovkey=xxs+dog+clothes&ovmtc=advanced&ovadid=39496490011&ovkwid=268080176011

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pom mom of 3 and 1 german shepherd

i have a teacup too shes 3lb. i know its really hard finding clothes sometimes i get lucky and find some stuff at petsmart. but your better off shopping online. heres some good sites. i get my chis clothes from here and shes even tinier then your dog so it should deffently fit your chi
glamourdog.com
doggiestyle2.com
trendypuppy.com
ohmydogsupplies.com

there some cheap and some expensive stuff on all sites
and make sure you measure you chi before you buy anything got make sure it all fits just right
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