Today’s prompt from FOLK Magazine’s 2013 Journal Challenge states:  “What family memento do you cherish?  Why?”That’s a tough one.  I mean, I have TONS of cherished family mementos!  The word “memento” comes from the same root as “remember.”  Dictionary.com lists this definition:  “an object or item that serves to remind one of a person, past event, etc.; keepsake; souvenir.”  How does a mother pick just one?I have spent much time and…