Not long ago, i learnt a model called "magic cube rose", by Valerie Vann. It's basically a cube that turns into a rose ("Gee, thanks Captain Obvious!")
... Anyways, after I mastered it, I made a surprise to a female friend of mine, giving her the cube, which had three green sides and three red ones. She said "Cool cube!" to which I replied "Nah, it sucks, let me make it cooler". I took the cube and made it a rose, without her looking. Boy, I wish I had taken a picture of her face... such a harmonic mix of joy and surprise... Then I asked her to go out with me, and she accepted! We're dating for two months now.
Well, that's my story!
Here's a youtube video of the Origami Magic Rose Cube (Valerie Vann)