Looks like someone (or yourself?) is 3D printing their own propr locks.... Not sure how resistant they will be but why not. Thing is that we will all receive the official prop locks from DJI.
Just got the actual DJI locks here in NJ (shipped from Aerial Media Pros). The real ones have a soft foam ring, so I'm concerned a 3D printed one either might not be as snug and/or might scratch the motor a little.
Weight distribution on the prop head is another aspect, 3D printers aren't that accurate on evenly distributing the amount of plastic around the item produced, best stick with the injection manufactured ones me thinks.