I have created a repository at GitHub to host the source files for the toolbar created in the toolbar tutorial. This should hopefully make it a little easier for people to fork the project.

As an aside, I will be updating portions of the tutorial over the coming days and weeks. There are sections of it that are now out of date, and I would like to improve the UI of the toolbar. Updates have already begun (I've cleaned up the first two sections), so stay tuned for improvements to this resource.