I saw this idea on a blog and although I believe I bookmarked it, sadly I cannot find it. So, thank you somebody. I have had this shadow box for a long time - just sitting on a shelf. One day while just reading blogs, a woman had cut out lots of hearts and was was folding them and attaching them to a bag. So in the spirit of using up "stuff" I already have, I punched out a bunch of hearts with a heart punch that was still in the box. Because glue was involved I lined the box with card stock (from the shelf of paper).
The hearts were folded in half to create a little dimension and glued in place.
I will display this for Valentine's Day and then perhaps make another display for Mother's Day.
As Martha would say, "It's a good thing!" And I didn't go to the store!