Enormous cuddly crochet elephants are sure to be a hit. These Adorable Crochet Elephant Amigurumi Free Patterns are just what you need to make one.
This is the cutest Koala pattern I've seen :)
Aurora The Unicorn Amigurumi Pattern Plus
Several bunny patterns
Cuddly sheep ✿⊱╮Teresa Restegui This little lamb would be so cute done in paper mache!
But I would probably use a Led light bulb that won't get hot.