Penguin Art

I saw these adorable penguins in a grade 2 class I was subbing in probably about a year ago. 

penguin art

I did a quick search and found some instructions for how to make these guys (or something similar) on Instructables.  I could see these being used if a class was studying about a place where penguins live and I feel like teachers often do entire units just on penguins... or they seem fairly easy to make that a kindergarten class learning about the letter "P" could probably manage making these with some assistance.  How would you use these in your classroom?