Finger tip splint

thingiverse

I smashed my finger on a car door. Every time I use that finger, I cause more harm to it. This contraption fits over the end of my finger, serving as a constant reminder not to utilize it, and provides some protection if I do make a mistake. The ID is 17.7mm in diameter, and the inner length measures 35mm. It should adapt well in your slicer for varying finger sizes.