I think Tucker looks neat, I've never actually seen him in game though.
As for unique villagers... Anabelle is technically an anteater villager but she's modeled to look like a pangolin (her coloring and tail)
Also as far as I can tell only one of the "ostrich" type villagers is actually modeled to look like an ostrich, the rest are different types of birds.
Blanche - Ostrich
Cranson - Stork
Queenie - Quail
Gladys - Crane
Phil - Pheasant
Flora - Flamingo
Phoebe - Phoenix