MATERIALS: shirt box
The main thing with re-using shirt boxes is that you have to cover up those pesky brand stamps. Choose a shape, or shapes, that you would like to work with and cut it from the kraft paper (construction paper works well too, as does scrapbook paper).
Apply glue to the back, and then place it over the stamped part of the box. After that you can feel free to glue more hearts (or your choice of shape) around on the top of the box to make it look pretty!
Wrap it with twine, string, or ribbon, and you're all set to go! Easy-peasy!