That's no moon. It's a grinder! This small & compact metal grinder is shaped just like a certain infamous space station from a galaxy far, far away. This Space Ball Grinder is about 40mm in diameter, or 1.5 inches, and comes apart to reveal it's made of 3 parts: the grinder top & bottom, and a hidden compartment to catch pollen to ensure every bit of herb gets used to its maximum.
Just don't plug the exhaust vent!