After about 45 minutes of wandering the aisles of Lowes, the light bulbs started going off in my brain when I found a set of nice adjustable brackets to make shoulder supports inside the robot. It's basically a way to rest the robot on your shoulders while wearing it as a costume. My wife gave me an old pillow which I will cut up and use later in the week to pad the bracket.
And the good news ... I can hear again !