What are objects that fly?

Don't tell school that I told you ;P Get some really colorful helium balloons and a good, quick camera. And by quick, I mean super quick. Not the kind that takes even a second to charge or whatever. Go out on a fine day (the less wind, the better) and set them off. As they go up take a photo. I do hope I've ped my point across. Don't snap it when they're too far up though. It's a waste of balloons, but the photo, if calculated properly, will look pretty good. C: Good luck!