When my daughter was just learning to talk she'd bring me crayons or chalk and ask me to draw her favorite Sesame Street characters saying,"See-see Einee? See-see Baba? See-see Butt?" I ended up drawing hundreds of 'em at her request, and I never once looked at reference. The results were not great but they made her happy. I also made them walleyed because it annoyed my wife. I recently took two of the sketches and translated them, verbatim, into 3d. Here they are. Baba and Butt.