Google has recently launched a separate page where you can create official google buzz buttons which will allows your reader to share your website page through google buzz account among his / her friends. The new official button can be easily integrated with almost all types of websites, and you can customize the google buzz icon and size as per your own requirement.
You can get official google buzz button at google.com/buzz/stuff
You can easily configure your buttons as button + counter or button only or link and post count in top icon or in below icon. Once you are done customizing all the settings the copy the code below and add it to the source code of the page where you want google buzz button to appear.
Read more google buzz tips here which we had posted before, to get more productive on google buzz