You need a rectangular piece of colored paper, two more piece of different colored paper (to be glued on the reverse side), and a wooden stick.
Cut the extra pieces of the paper as shown on the picture. Fold the paper as shown and then fold by the middle and glue the two parts.
Glue the ready heart on another piece of colored paper. Place the wooden stick and once again glue a colored sheet of paper. Cut in the shape of the heart leaving some space between the different colors.