The Valentines pictured above span six decades, more or less.
When you send a Valentine,
That's the time for fun;
Stick it underneath the door
And run, run, run.
Pick a pumpkin
Put it in your heart:
For little Jenny
Also from that lovely book is this, intended for the summer fair in its cycle of seasons, but appropriate for this day as well:
Huckleberry, gooseberry, raspberry pie
All sweetest things one cannot buy.
Peppermint candies are six for a penny,
But true love & kisses, one cannot buy any.
"Love's a sweet no money can buy." ~ Father Fox