Vsauce's Michael Stevens answers a great question with the help of Yeti Dynamics: What if the moon was a disco ball? The answer is sad: The mirrors' specular surface would make the moon almost invisible. However, things really get groovy if you put the disco moon at the same distance as the International Space Station.
Jump to see the simulation at the 2:13 mark. Later you will be able to see how a single mirror would look like (amazing!) and how the moon disco ball would look from space.
Bonus: What if the moon was a banana orbiting at the same distance as the ISS?