Hi!
I don't know who buys the leftovers either unless it is something someone can use in crafts or other occasions, even though they are red, pink or hearts. My Uncle used to go right away to the department stores or drug stores, just like after Christmas and buy up the deeply discounted chocolates.
When I was in elementary school, some of the early years we used to make a pocket out of two paper plates. One stayed whole and the other was cut in half and stapled to the whole one as the inside of the plates faced each other. Of course we colored them and put our names on them with crayons, made a hole punch in the top and either hung them with ribbon on the backs of our chairs or on a bulletin board. I hadn't thought of that in many years. ❤️ Hope you had a nice Valentine's Day.