Quote:
Originally Posted by DWB
Very common in Asia. We set them off for just about any holiday possible. New Years there are usually 1000s of them in the sky.
You have to light them and hold them to the ground so the heat builds up inside. Think hot air balloon, but small scale. Just let it sit there and heat up. It will usually let you know when it's ready to fly, then just lift it and let it go.
If you want to have some more fun, tie strings of a few firecrackers to the bottom of it and light them as it starts to take flight.

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From what I experienced trying to get these things to go off, that would have been a picture of a mass burning/disaster/suicide.
It's not rocket science of course, we held each one upright until it felt like it wanted to take off and then gently nudged them up into the air, but some of them wanted to come back down on us, some barely go up and head towards a tree across the street, some hover 100ft over neighbors houses for a mile or so. There was no wind. The couple that we did chase down we noticed some people in the neighborhood outside on their phone looking at it, probably calling the cops.
Maybe it's because I got the cheapo ones from Hong Kong.