Removing Stains and Odors from Porcelain and Cloth Dolls?

I inherited many dolls that are one of a kind. They are porcelain with a cloth body. The clothes are stained yellow and smell of cats and cigarettes I tried washing with Dawn and peroxide. It took out the dirt, but not the yellow stains or smell. Any suggestions are worth a try. Some of the clothing can not be washed, but the dolls stink on their hair and body. Help please.

By Ruth B