The Miata had a heavy duty, steel tow hook on the rear passenger side, but it was not needed since I have a fancy aluminum one on the driver side. Sorry I don't have a picture of that.
It was easy to remove with two bolts and two nuts.
Here's what came off.
Weight Savings: 1 lb, 11 oz.
I also got to weigh the car again and it was 2220 pounds with a full tank of gas. I'm making good progress toward my 2200 pound goal.