Valentine hearts garland. Made from stiffened fabric, the complete tutorial can be found here on How About Orange. The stiffened fabric concept is a new one to me but it seems fairly straight forward and the effect is marvelous. Love her fabric choices too. Delightful.
I'm thinking that if you wanted to turn this into a project for the kiddos you could probably just use paper and a stapler. They won't be quite so delicate but the fun factor would definitely be there!