Kids plastic sword handle with screw threads
These plastic toys are always breaking. Maybe that is a good thing. Better that the sword breaks than it injures one of the kids. This is just a quick design of a 3 part handle to hold a kids play sword. It was done in openscad so it is somewhat customizable.
It is pretty easy to print. I did use some support from the build surface just because it made for a smoother surface under the arcs.