First draw the heart shape on the cereal box carton paper. Cut it. Then trace this heart to another cereal box paper and make a bigger heart. After that make four long strips. Make two type of strips, one is for the box, and one for the lid. Make the strips for the lid with smaller width
Now trace each of those on wrapping paper that you want to use for decoration. Add a few centimeters along the line of each trace. After you have finished the tracing, cut all of these.
Grab the heart shape hot glue on the edge of the line. Then grab the lid strip and stick it upright to that edge. Do this gluing the strip to the heart all along the edges with hot glue. Cover all the line of heart with the strip.
Spread paper glue on the heart. Grab the heart shaped wrapping paper and stick onto it. For the other wrapping paper strip piece, fold on all allowance then stick it as well covering the entire strip.
Do these for all lid and box. Trace the heart shape onto cotton fabric, cut it, and then place it inside the box. Close the box. And you're done!