So i wasnt happy with the designs i saw for keychain containers on here (mainly the dimensions and how sharp corners a lot of them had), and i decided to design my own. Designed for 0.16mm layer height, but can probably work with lower and slightly higher aswell.

UPDATE: I have added a smaller version of the design as a pill container, it should be able to be printed with the same settings.

UPDATE 1.1: I changed the smaller lid so it has the same connection point as the large one (they seem to print better), i also changed the large container thread to the same type as the small container.

UPDATE 2.0: I updated the thread to one with a larger pitch, which means it will have larger major diameters (which in turn means easier to print and it will grip better). I will leave the older versions up for anyone who wants them, but i highly recommend printing the V2 models over the regular ones.

UPDATE 2.1: I saw that there was an issue with the wall in the minor diameter of the thread at the base of the pill container (wall was .1mm thick) so i made the interior hole diameter smaller by .5mm to compensate for it. It should print fine now without a small hole and weird Z-seam on the interior.