balloons do the trick (and have long range). https://youtu.be/Wp2CEJb4oyY?t=71 https://youtu.be/Wp2CEJb4oyY?t=71 maybe multiple balloons will even level out, s

balloons do the trick (and have long range). https://youtu.be/Wp2CEJb4oyY?t=71 https://youtu.be/Wp2CEJb4oyY?t=71 maybe multiple balloons will even level out, so they don't all burst in thin air but stay somewhat low?