How about hanging a treasure plate of Feng Shui on the balcony?

There is no distinction between good and bad. Because it can't affect Feng Shui;

If hanging this thing can make Feng Shui better, it is purely

Superstition has no scientific basis.

Although there are some things in Feng Shui that science cannot explain,

But that is definitely a minority, and most of them can still be explained clearly.