Idea #1: Using a heart-shaped cookie cutter, simply cut out the shape in a slice of watermelon...

You can also cut out a heart in a different type of fruit (in this case cantaloupe) and place it inside the watermelon cutout. My little guy thought this looked, and I quote, "awesome"!

Idea #2: You can psych the kids out by giving each of them heart-shaped candy boxes filled with grapes...

Idea #3: What child doesn't like things that come on a stick? Again using the heart-shaped cutter, you can make fruit kebabs.

Idea #4: My husband thinks this is cheating because it involves chocolate, but I still think it's a good idea. First cut out 'x' and 'o' shapes in different types of fruit (I used cantaloupe and bananas) and then lightly dip them in melted chocolate - yum!

Good luck to all the other room moms out there - hope this helps!