HERE. You will be redirected to Make Mine Milk Facebook page.
-If you're not from UK - Follow these steps:
1.Go to a UK proxy like:
unblocker.biz/ OR militaryprox.info/ OR uhuf.com
2. Paste Stardoll link into the blank box of the proxysite
3. Click Go or just hit Enter on your keyboard
4. Log in to Stardoll
5. Now paste the link into the URL/Adress bar of the proxysite
6. Click Go or hit Enter on keyboard
7. You will be redirected to Make Mine Milk Facebook page.
8. You can now leave the proxy and go to Stardoll as usual
The milk moustache should be in a Make Mine Milk Bag in your Beauty Parlor.
Attention: it's hard to see, because it appears on white background, you just have to search the entire bar below your MeDoll:
Thanks to HTGF for the pictures.