HMW Death Star Gear Knob for Classic Mini

That's no moon - it's the HMW Death Star Gear Knob for the Classic Mini. 
 
These gear knobs are weighted with a 5/16 brass thread, and an M5 grub screw in the top to easily adjust the alignment of the gear knob on the gear stick. 
 
Colour Explanation:
Normal colours are labelled as simply the colour name, ie: Red, Blue, Orange etc. These are just solid block colours. 
Metallic colours have a metallic/reflective sheen to them. Metallic Silver, and Metallic Black can be seen in the pictures above. 
Flip colours, such as Black/Blue Flip, are a two-colour finish, showing either colour depending on the angle. Black/Blue Flip can be seen in the pictures above.