"Q: Can I use an octocat as my avatar?
You can use an octocat as your personal avatar, but not for your company or a product you're building. You are welcome to show your <3 for GitHub, but not appear as if you == GitHub."
それで、以前これらを描いた時にあった"Can I make my own Octocat？"っていうクエスチョンがなくなってて一瞬焦ったけど、Octdexが公式になった模様。
Q: Can I submit an octocat to the Octodex?
We make quite a few octocats here at GitHub. Since they probably wouldn't be seen by more than a few people internally, we created the Octodex as a way to show them to the world. Everything on this list is official GitHub artwork and is under GitHub's trademark license, so we only include submissions from people affiliated with GitHub."
"Q: Can I create a product containing an octocat?
You may not use an octocat, created by GitHub or by you, for products or merchandise without written permission from GitHub. This includes, but is not limited to t-shirts, toys, stickers, etc."