I love the SVS Moon Globe (Tom Fullen https://makerworld.com/en/models/44705#profileId-48497 )
So I created an adapter to fit it to all standard 30mm lamp sockets (like IKEA lamps)
Glue the large part to the bottom of the moon and screw the small Part to the lamp as you would do with other covers. Then gently screw the parts together.