I created these clamps to replace the broken mudguard clamps on my e-bike after a crash. Unlike the original clamps which had to be flexed over the bike's frame, these consist of two parts that mate together, so they can be printed in PLA/PETG/ABS. I'm not sure how strong the link is, but the clamps used on my bike have lasted more than a year.

The included .f3d file allows customization of parameters like inner diameter, screw size, and clamp thickness.