Red Ribbon Week - I just love this simple graphic of 12 Hearts. A variation could be created to promote the value of "caring" at school or to thank someone who really demonstrates this value to students, staff, parents all year long.
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.