I made a zillion hearts, took a gazillion photos .. and wrote a few words too! I tried to keep it unbiased and informative, but I couldn't help but mention my favourites, and why.
http://juliefountain.blogspot.com/2010/07/hearts-of-brass-make-hearts-of-glass.html
I'd love to hear anybody else's comments on heart presses too, especially if you've got any that I haven't.
Oh, and here's the link again to a simple tutorial on how to use them http://www.heart-tutorial.mrumru.com/