Flywheel Key Chain

I made this a couple of years ago as the intro project for a rapid manufacturing course I was taking. I had missed the first week or so of classes to go see the engines at the [Coolspring Power Museum](http://coolspringpowermuseum.org/) in PA. I did not want to miss any more classes and it was a Sunday, so we drove straight from PA to Atlanta and arrived home at about 4am. I had class at 10am, and the first project - a keychain - was due. I got a few hours of sleep and then headed to school to s