Use hydrogen instead of helium. When they shoot it down it will actually explode instead of just pop.
Sauce - when I was stationed in Turkey my friends and I used to go into town and buy balloons from street vendors. They were hydrogen-filled, and instead of a ribbon to hold onto they tied yarn on them. There was nothing quite as funny as lighting the yarn on fire and letting the balloon drift away, and waiting for the big boom.
Use hydrogen instead of helium. When they shoot it down it will actually explode instead of just pop.
Sauce - when I was stationed in Turkey my friends and I used to go into town and buy balloons from street vendors. They were hydrogen-filled, and instead of a ribbon to hold onto they tied yarn on them. There was nothing quite as funny as lighting the yarn on fire and letting the balloon drift away, and waiting for the big boom.