One-Handed controls for Traxxas RC Transmitter
thingiverse
this should bolt into the screw for the transmitter wheel on Traxxas TQi models. It is a work in progress however, and I haven't been able to print it yet. Its meant so that you can control the wheel with your middle or ring finger, with a right hand that is.
Download Model from thingiverse
With this file you will be able to print One-Handed controls for Traxxas RC Transmitter with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on One-Handed controls for Traxxas RC Transmitter.