Kabobs or Fun Finger Food
Take a small heart-shaped cutter and cut out several pieces of watermelon, pineapple, kiwi, and any other fun fruits. Make the kabobs using a thin pretzel stick (I think it can fit at least two pieces of fruit on it).
Insert the thin pretzel sticks in the center of the heart-shaped pieces of fruit to make an appetizer tray.
Let the kids smear peanut butter on one side of the heart-shaped pieces of fruit to make a valentine design on a piece of bread before they eat it.