Best Valentine(or just for fun) craft, ever. Who knew that you can use lemon juice as "invisible ink" to write a message. then hold the paper over a heat source & the message appears! Stuff it in a bottle, add a handful of confetti, and voila
Melted crayon hearts: A boy in my class a couple years ago gave these as little Valentines made out of melted crayons. He said, "For Crayon Out Loud, Happy Valentine's Day". could also say, "You COLOR my world!" Use silicone cups to melt them in.