Bubbles
She was never so delighted, the day she saw bubbles for the first time. Her life was admittedly a little one, but still. The bubbles were something else. A perfect sphere of multicoloured, light-reflecting, transparent glass-like qualities and on top of all that, it FLIES. Not like an airplane mind, nor a bird. It's more of a floaty sort of flying. How can something float on air?
She moved to bring one closer to her for inspection but low and behold, as soon as she touched the thing, it disappeared! A split second of astonishment came cross her face and even more astonishing was how quickly that gave way to glee. She let out a giggle, mouth wide open in a smile as she stared out at the floating mysteries in front of her.