Just do a search on “sky lantern” at Amazon, there are a ton of hits.
http://www.amazon.com/Outsunny-50-pk-Paper-Chinese-Lanterns/dp/B0092KI68C
My neighbor had some. The fuel is like the firestarters for charcoal like you use with BGE cookers.
See post 13. Had not thought of sky lanterns.
Never mind. My husband said they were very high up and going two by two.