This made me wonder what it would actually look like.

It would be so big, would it curve around with the Lagrange point?

Would it be significant enough to see with the naked eye?

Would we see ripples or waves cause by other gravitational forces. Could it be used to detect gravitational waves?

That would be cool. Except the whole, “not seeing the moon anymore” thing.

Can you imagine the energy you would need to keep something like that from drifting off and or bunching up under its own mass?