Customized Rounded Simple Name Fob

This is the 'next step' in design of a simple, customizable, name key fob, used as an introductory-level demonstration of OpenSCAD to community members, through the Let's Code Blacksburg organization.
(https://www.facebook.com/groups/letscodeblacksburg/)

This is intended to show the basic parameterization capabilities of OpenSCAD, and the Thingiverse Customizer, plus use of the minkowski() operation.

Using the Customizer, you can alter the dimensions of the fob body and the keychain loop,