Bret Animal Tees

From Episode 14: New Cup

Panda

We are Stepping High For the March of Dimes - Unicorn

From Episode 15: The Tough Brets

Parrots

Polar Bear

Chimpanzee

Episode 16: Murray Takes it to the Next Level

red polar bear shirt
zebras

Episode 17: Unnatural Love

Owl

Penguins

Episode 18: Love is a Weapon of Choice

Fish (Bass?)

Jemaine wears Brett's Red Penguins Sweatshirt 
(in hopes to impress BrahBrah)

Episode ?: Doug wears a wig and a Red Penguins Sweatshirt that looks suspiciously like Bret's when making out with Mel in their car

Episode ___: The Actor
Pink "You're Quacking Me Up" Ducks