Generate sampling hexagons in ArcGIS. Original credit goes to graber's code and twhiteaker's updates from http://blogs.esri.com/esri/arcgis/2013/05/06/a-new-tool-for-creating-sampling-hexagons/
Changes in this version include the use ArcPy and the Data Access module.
This tool uses the data access module and can be run at the lowest ArcGIS for Desktop license level.
The Data Access Module is available at version 10.1+