A few nice heart image images I found:
Image by coolnalu
This image turned out totally out of expectation, I was playing with my camera to try to warm up for the next day. The moon was beautiful and bright so pointed it to it. took a few shots then got this one unexpectedly. The scattered light from the moon lightened just enough area of moving clouds to form the shape of a heart.
Part of the image is fake though, that is, the moon lost its detail since to be able to see the clouds the exposure had to be long, so the moon was overexposed, I replaced with the moon from another shot in the sequence.