bubble effect with share buttons

I could find tutorial and code for bubble effect with CSS and static images: http://aext.net/example/bubble-css

I have also put together various sharing buttons to make a sharing bar: http://pollwidget.org/test.html

My question is, how do I create a sharing ba开发者_StackOverflowr with bubble effect? Because all these working buttons are got from embedding a javascript code from twitter etc, while the bubble effect is with static images.

I am not looking for complete source code, but some hints and tips to get me started would be appreciated.

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I'm not sure it would be possible or wise considering they aren't images, they're individual widgets from various external sources built in HTML/CSS/JS.

You might be able to achieve something along the lines of a bubble effect if you customise an AddThis toolbox - http://www.addthis.com/help/toolbox