http://supermarkethq.com/product/2462?utm_medium=email&utm_source=newsletter12&utm_content=206095425&utm_campaign=newsletter&utm_term=Moustache+Fetishism%3f
Melanie makes sterling silver trinkets on a site that is like Etsy, but with a better looking layout like Notcot.
But don't worry! Etsy also has mustache related products for girls. 58 pages worth, even. This is not a blog about products though, so I'll keep them to a minimum unless a girl's like, dope pretty or the product is genuinely innovative.
One random Etsy product:

http://www.etsy.com/view_listing.php?ref=vl_other_1&listing_id=31102837