There are so many cute things in Zelda! Cute creatures like remlits, dekus, minish, tiny chicks, kitties, baby Epona... cute characters like Makar, Marin, Romani, Medli, Aryll, the kid Links...
I always thought it was really cute when Link saluted Captain Keeta, and since no one has said that, I'll mention it :3 I'm not sure why, and I'm not sure if it's cuter than a small fluffy animal, but it's always been my favorite scene!