Writing a Snake Game in Pygame

I'm mulling over making a quick series on how to write a "snake" game in Pygame. Part of this is because I've been stalled on writing this down in the book about Pygame and game development / design and I'm thinking this may be an approach to uncork the bottle of inspiration. Because writing in the book? That's hard. But writing a blog post? That's simple, right? (Don't answer that; I don't want smarter me to wake up and say they're the same thing. :) ).