My tuner's ball joint cracked while it was in my guitar case. I made this to fix it. Glue the two parts back to back - I used ABS and glued with acetone. I have not tried PLA yet. Snap the tuner into the assembled cup with the side buttons in the cutout, and then attach the clip and stalk to the back. This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/9rUeMMFvdFrI used 1.75mm http://toybuilderlabs.com ABS filament on a Makerbot 2X Standard detail, 2 shells, 30% infill, raft & no supports. Optional: solvent polish for 15 min (acetone vapor at low temperature so as not to melt the tines on the ball joint). I find that this strengthens the flexures and reduces the likelihood of breakage. Glue the parts back to back, allow time for the ABS to harden up (especially if you solvent polished - I recommend you leave it overnight to dry) Grind or cut the old ball joint off the back of your Snark - be careful not to damage the buttons - then align it with the cup so that any side controls are over the cutout. Pop it in, attach the clip and stalk, and you're ready to go.