A few nice heart image images I found:
Heart Of Lothian
Image by kirstyhall
The Heart Of Lothian on a metal map in Edinburgh's Old Town. It's been polished by people rubbing it for luck.
Part of an ongoing series of Creative Commons images of urban imagery. Free to use as you please. Enjoy!
Wooden Heart Puzzle
Image by zane.hollingsworth
Nikon D90, 1/1250, f/1.8, 50mm, WB Sunlight. Light Source was direct late afternoon sunlight through a dirty window.
35/325
Shot for NLP325's Hearts Week. This is a wooden heart puzzle Kim gave to me as a gift one year. If you take out the interior pieces, they spell out a message. See the image below in the comments for an image of the puzzle spelled out.
Heart 2
Image by Robin Hutton
Some more images from the school grounds of Carnarvon Senior High School