Pardon me ma’am, but where did you get that mantilla?

A bleg to anyone out there who might know. My dear little daughter has expressed some interest in wearing a mantilla (and the Lord knows I’m not about to stop her). The problem is, first being a man (a.k.a. fashion dis-inclined) and second being mostly surrounded by people who are resistant to (or at least disinterested in) such things I’m not really sure where is a good place to get one. And, while I’m at it, what are the appropriate manners for its use? Any help for the clueless?