This is probably the most unique way of making a well-shaped heart that I've ever seen.
The post and tutorial is over at CraftsForAllSeasons, at this link.
There is still plenty of time to do this on tees, totes, or any other fabric item for special people on your list. This is really easy and the supplies are not hard to find, especially at a craft store or department.
This is part of my series (1/15-2/14) of Valentine projects.
For other projects in this series, just look along the right sidebar for the label "Valentine Projects." I will post only tips that do not require knitting, crocheting, machine sewing, tatting, embroidery, or any other skilled technique.
If you are feeling lazy, check my Etsy shop for items for your gift list.