ArcGIS Python Add-In Button Toolbar to Apply 'Favorite Projections'

The objective of this small project is to create a ArcGIS AddIn that renders a toolbar that allows the user to change their dataframe coordinate system to one of the logged in users "Favorite" Projections or Geographic Coordinate Systems. The Addin Must be Compatible with ArcGIS 10.x and be signed. The AddIn should be useable standalone or supported by server rollout. NOTES ABOUT DEVELOPMENT The ArcGIS 10, add-ins is to be authored using .NET with Extensible Markup Language (XML). The XML describes the customizations, while the .NET classes provide the custom behavior. The ArcObjects software development kit (SDK) includes an Add-Ins Wizard that integrates with development environments using Microsoft Visual Studio 2013. Source Code and Project to be supplied.