I wanted a quick way to mount an ultrasonic ping sensor on top of a servo so it could scan left and right.  Instead of mounting a servo horn on the servo and then mounting something on top of that, I decided to make this.
This is my second design and I'm still testing it out to make sure it fits right.  I'll update this info as I go.
Note: Ping sensor image/model by dgswaner who did an awesome job and I take no credit for his work.  The ping sensor image is shown as an example of the use of the servo mount only and the actual ping sensor model  by dgswaner is not included here.