International icon for breastfeeding?

I get a lot of Google traffic looking for pictures of nursing mothers. I'm never sure exactly what it is they're looking for, but I'm betting this isn't it!

The folks at Mothering.com held a contest recently to solicit designs for an internationally-recognizable icon to represent breastfeeding. They said, "The image of a baby bottle on an airport sign announcing the location of a "parents lounge" infuriated us and got us thinking: Isn't there an international symbol for breastfeeding?"

The results of their contest are clever (check out the finalists here), but I find these also-rans (click through for more) particularly funny:

Here in Canada, or at least in Ottawa, there is a commonly-recognized symbol of a baby that indicates nursing stations, baby-change rooms and whatnot. Are they not common everywhere?