Glue top parts of hearts together, just at the very top. Let dry.
Step3
Use yarn/ribbon and a thick needle to thread thru the heart, right below the gluing. Tie front and back ends or yarn/ribbon at top in a pretty bow. Do one thread of yarn/ribbon on each side of the heart.
Step4
Use glue, sparkling craft decorations, or whatever, to decorate the outside of the heart-shaped card. Use craft pens to write a message on the inside of the card.
Tips & Warnings
For a neat twist, try gluing most of the front and back heart together, then filling it with craft stuffing. Glue the heart closed and use a craft pen to write a message on the fluffy card.
Be careful not to let the child glue the two heart pieces completely together if their making a traditional card. Their creation won't open if they do.