Perfume or scented oils
First take the container and clean it. Second add 1/4 of water in the container. Then add the perfume or scented oil you should only use 1/4 or 2/4 of the perfume or oil. Next add the hydrogen peroxide so the smell lasts. Let it cool off for 24 hours at least and if you'd like you can put plastic wrap on it while you wait, but just remember to keep it on with a rubber band or something like that.