If neither of those is the specific one you meant, here are a few other highly-rated comic works involving babies or young children:
Walk down the baby aisle at a big box store. You see "High Contrast Black and White" books. They are static. A zebra. A checkerboard. A circle. These are fine for week one. baby play comic work
Typical Strip Structure (4 panels):
Teaches empathy through the identification of expressive "comic" faces. If neither of those is the specific one