When I was a kid, my sister and I would lie on our backs and look at the clouds, trying to see shapes in them. She always saw all sorts of shapes, but I never could - I always wound up seeing "cloud" instead of dog or bunny or flower. On the trip to the beach this last time, I did finally see a cloud that looked like the shape of a sea horse! :)
I found a cute site about clouds as I was playing on the computer today - Cloudyskies.net