Not sure if all these fit with what you are going for, but...
Spring Chicken
Busy Bee
Dirty Rat
Dirty Bird
Eagle Eye
Leapin' Lizard
Proud Peacock
Crouching Tiger
Hidden Dragon
Cheeky Monkey
(This is fun!)
Bug in a Rug (You had fly on a wall.
)
Sleeping Dog
Laughing Hyena
Weeping Willow
Rolling Stone