Customizable servo horn
thingiverse
I'm still waiting on my new 3D printer to arrive before testing it out, but based on what I've seen so far, it seems like it should be working just fine.
Download Model from thingiverse
With this file you will be able to print Customizable servo horn 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 Customizable servo horn.