Starter handle for rope start engines. Max diameter of rope is 5mm. I printed this in carbon fiber nylon but that might be quite overkill, however if you are gonna use it in hot summer weather you might not want to use simple PLA with low vicat softening temperature. It might work I just didnt want to risk it, I got nylon so rather use it than be forced to dig out the cord from the engine when I want to cut my lawn.

Printed with 0.4mm nozzle and 0.2mm layer height, no need to be fancy. Might wanna pump up the infill if you got a lot of force in your pull.