I crocheted three hearts from some orange acrylic yarn that I'd had hanging about, left over from a previous project. I used two patterns one was Attic24's teeny tiny hearts and the other Cherry heart's small heart pattern. I was a bit vague with them both though so some of the hearts are a little wonky.
I'm quite excited to go back and check on them in a few weeks time. I'd also like to make some more hearts and keep putting them up. I think it'd be nice to leave a trail of crocheted hearts behind me.