Omnia

Omnia has no mouth (and many eyes) but she'll pretend to drink and eat because she wants to join in, and also she finds it amusing.  Eating is so cute and weird! She'll serve tea, pretending to sip from an empty cup, "munch" on the same biscuit, and even pretended to eat candy by taking out a piece, lifting it to her face, and then discretely putting it back into the bag before taking another out.

Also she's a complete Disney princess, capable of befriending animals with song.