Home made hot air balloons. For amusement and general mischief.
Long ago when I was in college fellow dorm residents launched some of these over campus.
Body of the balloon was a dry-cleaning bag, the fuel after-shave lotion, four drinking straws taped together and a small piece of aluminum foil formed into a cup to contain the fuel taped to the straws. Someone to hold the bag up and away from the aluminum cup away while the fuel is lit and away it goes. Super easy to make ... Read even more