I've thoroughly enjoyed reading all of these. A favorite of mine recently is "nummies" although LO isn't calling them anything yet. We switch terms a lot (want: to nurse? boobies? milkies? to eat?), so we'll see what SHE picks!
Fun thread! My DD calls it na-na, as in "I need to eat na-nas, mama!" She came up with this on her own; I didn't actively encourage any name in particular. She does know that I will occasionally refer to them as "boobs" but she knows I don't like it when she says it. She also knows the word "nurse" but she only uses that in relation to her dolls, toys, etc., when she wants me to "nurse" them.