My husband liked the idea of doing those too until we read a note on one companies website that if you are within certain distance from an airport you shouldn't use them. We were too close. Also I was afraid is one of them came out of the sky still lite and caught something on fire. I think they are good if you are doing say an ocean side release because you have a less chance of something going wrong, but then you have that litter going into the water which isn't good for the animals.
I hate The Hangover 2 for making this seem like a good idea.Posted by NOLAbridealmost