It is ok to buy a box of Valentines at the store, the dollar store even.
He is very happy with his Star Wars Valentines.
On the other hand: If they LOVE to craft, it is ok to hand them a pile of paper, some stickers and fun pens and let them go at it. In fact, it is ok to sit down and color with them, if you want to.
She is having fun (and I am not feeling stressed.)
This is good.
(It is also ok to do something totally crafty and cool, if you want to, and the kids want to.)
Happy Valentine's Day!