Seeing my Nana reminded me of a project we used to do together when I was a kid. It's a good use for that leftover mandarin you found in the toe of your stocking. All you need is an orange and some cloves.
Press the cloves into the orange. Presto! Just like that you have a room freshener You can leave them in a bowl on the table or tie a ribbon around them and hang them in your closet.