Here are some of the crochet hearts that I managed to design:
The Red+Green+Button was the first try. The other two was just made a few hours ago :D.
What do you think about these hearts? Actually still don't what to use them for :p. Any ideas?
Oh nearly forgot, I've tried to crochet a Smiley face which was suggested by my dear Pdy. As I was crazy to try at that time (same as the heart) I made one! Not that neat but at a glance you know it's a smiley smiley face :). I even made it into a comic strip.
Happy crafting everyone!