When I saw the trailer it reminded me of the Ali Bongo lecture in the seventies. There he explained
one of the methods Dan is explaining.
Ali’s idea was used bya famous Dutch kids entertainer the
late Henk Driessen who blew up a large balloon (for making animals) and after the balloon was full
of air he put the balloon on the floor, took another balloon also for an animal, made the largest
part of the animal and than adding the balloon which was all the time on the floor. That was his
variation.
Thought I mentioned it for other performers who want to use this idea.