The file 'Modular Kawaii Kitty Cat Choker 3D Printer Model' is (stl) file type, size is 1.3MB.
Print the two files and they should snap together :)
Update: Changed the locking mechanism, it should be more robust and secure now. Also made the holes smaller to secure charms better. The shape is a 5mm circle with regular hexagon inscribed (opposite vertices touching the circle)
ChokerTrinketv3.stl | 455.7KB | |
ChokerV2.stl | 3.0MB |