How many Feng Shui gourds can be hung on the truck?

How many feng shui gourds can be hung on the truck-don't hang any feng shui gourds. Why did you hang that thing? Hanging in the cab, swaying, disturbing attention and sight. Hanging outside the cab has no meaning except creating unsafe factors. Feng Shui gourd originated from the world of hanging gourd medicine (that is, herbalist) in The Journey to the West and the Dan medicine gourd of Taishang Laojun, which means treating diseases. It is hung at home to prevent diseases and rob diseases. It is not good to hang it on the car to prevent, rob or treat diseases.