Does your fingers like to dislocate or sub-lux when doing silly simple things?
KalEsh or Easy fire I made to make lighting a lighter less painful and risky to my thumb that likes to slide out of place. Adjust your make with measurements from your hand or make a quick print and then see how it fits. I printed mine in PLA, it works as intended, finger grooves for easier grip and a way to use the lighter without pulling my thumb out of socket (IYKYK lol)
Printed using a Raise 3D N2Plus