Ninebot / Segway S-Max Hands-Free Knee Steering Arm
A small "steering arm" that allows you to turn the Segway S-Max self-balancing scooter hands-free. Simply remove the steer arm from the base, just like when it was assembled, slide the steering arm into place and secure with 2 zip ties.
Source Blender file included, by all means make it better!!
You'll want to print it very solid, I use 75% infill so it's strong enough