Please, I need help with this
Build a custom tool, to use inside ArcGIS, to complete the task in Scripting Project Five. The tool should be capable of being added to a custom toolbar. It should be fully completed including directions and tool tips.
Add the tool to your ArcGIS GUI. Include a copy of the tool and a screenshot of the customized button in your altered GUI and toolbox as the deliverables.
The data files are the same as those used for Scripting Project Five (attached)
This sounds like homework, which isn't a problem, but it's important that you mention what you've tried, what doesn't work, etc.
Anyway, sounds like you could look into a python add-in. There's a sample there that could get you started.