The file 'Yin-Yang Key Fob 3D Printer Model' is (stl) file type, size is 292.3KB.
This is half of a yin-yang symbol which can be snapped together. A separate key ring will hold keys which can be separated to open different things - house-gate, house-garage, house-shed, . . . . .
Printing in two different colors (black/white) could add interest or functionality.
KeyChain_Scaled__standing_up.stl | 1.2MB |