First pattern I've seen that doesn't look weird in the center.
Is crocheting one of those things you have always wanted to learn? You can learn how to crochet with this collection of amazing free crochet patterns.
For the hearts pictured, I used small amounts of sport weight cotton. The hearts measure (unblocked) about at the widest point and in length.
Sarahndipities ~ fortunate handmade finds: Things to Make: Crocheted Heart Garland Pattern