It's not too late to share a little love. Just run out back, grab some rocks (the smooth variety work the best). Head over to your craft cupboard for some leftover paint and brushes and cover those rocks, end to end, with your favorite colors. Add some hearts on there and grab your sharpie.
I would write something like "YOU ROCK" on one side and then flip it over and on the other..."share and hide for someone else to find"! So EASY!