SG90 Z Servo Probe

Necessity is the mother of remixing; I switched up my servo mount, needed a short Z probe arm, and was out of servo horns.

This should just press-fit onto a SG90 (or anything using a Hitec B1 spline), although it whether it'll work with anyone else's printer is debatable. Actually, I have some doubts whether it'll work long-term even with mine.