Part 41581pb01 : Minifigure, Head, Modified Chipmunk with Centered Teeth, Reddish Brown Fur and Black Nose Pattern (Chip) [Minifigure, Head:Minifigure, Head, Modified] [BrickLink]
Chip & Dale 40550 | Disney™ | Buy online at the Official LEGO® Shop US
LEGO Alvin and the Chipmunks by ChiLUG - YouTube
Chip & Dale 40550 | Disney™ | Buy online at the Official LEGO® Shop US
Part 41587pb01 : Minifigure, Head, Modified Chipmunk with Separated Teeth, Medium Nougat Hair and Red Nose Pattern (Dale) [Minifigure, Head:Minifigure, Head, Modified] [BrickLink]