Astral Health

Rats are associated with water, so this means anything that contains water, including vases filled with flowers, aquariums and even bottles of oil or perfume can be subtle forms of enhancing their Feng Shui. 
Other lucky objects for the Rat would be anything to do with the sea including images of ships, painting of seascapes (but not stormy images) and sea ports. Water related elements such as penguins; fish, turtles, starfish and goldfish are very lucky for them. 
Real fountains or pictures of waterfalls, especially slower running ones, can help increase their prosperity.
As Rats are literary souls feathers and bamboo are also very lucky for them. Peacock feathers placed in the South can bring them fame and bamboo placed on their desk can lead to a promotion.
As rats like to travel they do well to place a globe of the world in their North West corner (or in their North sector if they want the travel to be related to their job.) Carrying a piece of topaz or amethyst can protect them while they are on a journey.
Peace Be Still  SAM