I saw a banner made with these hearts on a blog somewhere and thought they were so cute--so I had to try it out.
They were really easy. You just size your picture to 2x2. Then drop six of those onto a 4x6 blank page. Print that page, and cut it down the middle so you have two strips. I glued patterned paper to the back and then stapled it into a heart shape. If I was more ambitious, I would make more.