As a seven-year-old, my rite of passage was exchanging matching heart jigsaw necklaces with my third-grade best friend — necklaces locally. Shop and customize these Best Friends designs. Add your own text and art. Change colors. Put it on t-shirts, hats, coffee mugs, phone cases, and more. Make it. Find and save ideas about Matching friend on Pinterest. | See more about Call best friend, Bff shirts and Best friend clothes.