An open-source amigurumi version of Octocat, the mascot for the hosted version control system GitHub.

From a blog post by the designer:

Git is a distributed version control system ideal for the collaborative development of software. I use it to save the octocat pattern and make it available to everyone. It is very useful because if you download my pattern and find an improvement you can make me a pull request and that way contribute to build the best Octocat pattern of the world :).