Where can I find OpenID Buttons?

Yahoo offers OpenID buttons on t开发者_开发问答his webpage: http://developer.yahoo.com/openid/loginbuttons.html

I was wondering if Google / Aol and other providers have similar graphics that I can use on my webpage. If so, where can I find them? Otherwise, am I alllowed to just photoshop the logos of these companies into my own graphic?

---

The openid-selector has some icons that you may be able to use. The project is distributed under the New BSD License.

Take a look at their demo page to see the icons.