Spektrum DX5e stick lock /guide

I designed it in Fusion360 and printed two of these for a friend of mine to use on his Spektrum DX5e transmitter to lock the controls for throttle and steering of his RC-car.
In the heat of the moment he often found himself mixing up the controls and his RC car went out of control.

The guide is 48mm in diameter, so it might also fit other models.
It can be put in place with some double sided adhesive tape.