I adore the idea of this Heart Tic Tac Toe board. With the hearts made out of felt, it's easy to help the kids make, either cutting out or sewing, even if your little ones are beginners at sewing.
It's suitable for a range of ages and it's made from things that most people with children will already have around the house!
If you don't have any felt in the house paper or cardboard should work just as well.
It's fun to make, fun to play, and can even be used long after Valentine's Day is over.