I made 5 penguins for the man for Christmas - somehow he was surprised even though I knit them in in the living room while he played games.
Linux-like penguin - pattern by Hannah Kaminsky
Bunny the Penguin (originally a bunny pattern - Blob the Bunny) - pattern by Emily Stoneking
All modifications explained on Ravelry
Penguin (Ravelry link) - pattern by Jean Greenhowe - this is my favorite of the 5 penguins so here's 2 pictures
Penguin (Ravelry link) - pattern by Amy Gaines
Macaroni Penguin (Ravelry link) - pattern by Fuzzymitten