RC car transmitter reverse buffer

My daughter (8) has quite small hands for her rc car transmitter (spektrum dx3). This makes it really hard for her to reach reverse by just stretching her finger as there is such a large gap in the trigger.

This buffer removes the space in the trigger so that small hands are able to reach reverse a lot easier.

This should fit all Spektrum pistol grip transmitters but has only been tested on the DX3 and the SLT3

I printed it with Amazon basics TPU (standard profile) so that it will flex a bit and not hurt if it is pushing on a small finger. 100% infill rectilinear and no supports if it is laid on its side.