After we settled on Ivy's name, I wondered what songs it might show up in. I couldn't come up with anything while I was pregnant, but that's just as well. These things seem to work best (and have the greatest comedy potential) when they happen organically, usually while singing to the baby in question.
I sing to Ivy all the time. But in five weeks, I have yet to hit upon the song. Ivy Mathilda fits neatly into "Baby Beluga," but that song, as Westley would say, is "already taken." We turned that Raffi favorite into "Baby Burrito" while swaddling Westley. ("Baby burrito please make one for me / Pinto beans and vegan cheese / Salsa and rice and avocado / And a little boy ready to go.")
So far, the only other song I've thought of with the right rhythm is "Hava Nagila."