Akatsuki logo shaped earrings from Naruto.
They can be used as earrings or as a pendant, of course they need hooks.
There are 2 ways to print these earrings:
1. printing with a single color, but the desired effect would not be achieved;
2. multi-color printing using the 'filament change at layer' function of the slicer or using a printer with a multi-extruder.