Building a custom Skype-me button with status icon

I’m not a big fan of Skype and I usually don’t use it. However, in a recent project, I was asked to add a “Skype Me” button in the contacts section of a client’s website.
I guess you all know Skype provides a bunch of free buttons and even an online wizard to build custom buttons. This works pretty good, except it only allows to use the default Skype buttons and icons and images are PNGs.

What