The Albuquerque International Balloon Fiesta It's not abnormal for over people to turn up at the world's biggest hot air balloon festival, when hundreds of hot air balloons hit the big blue sky at once. They light up for a Balloon Glow night ascent.
If I had a pool I would totally try this out. Put a glow stick in a balloon for pool lanterns. Pool party on a Summer night! I think this could work pinned up on the fence of a backyard without a pool, too, so really great idea for any outdoor BBQ/party!