If you get something really smelly on your hands, like mustard, garlic, or cheap cologne, try rubbing your hand on some stainless steel under running water. This combination should mostly wipe out the bad smells.
Another tip for removing odors from fish, onions, or garlic is to
rub your hands across the blade of a stainless steel knife. You can
even buy stainless steel 'soap', which is just a piece of stainless
steel about the same shape and size as a bar of normal soap.
There is not much scientific data about how stainless steel removes
odor and other types of odors are not affected by contact with the