Milbourne Christopher demonstrated this in his final lecture at the Magic Castle, revealing that he had taught it to Harry Blackstone, replacing a less deceptive version Blackstone had been doing for years in his show. A small handkerchief, held by opposite corners, is twirled between the hands and seems to grow to massive proportions.
This is highly recommended as an opener, and can lead into a dove production of other effect with the handkerchief.
1st edition 2020, PDF 4 pages, video 48 seconds.
word count: 621 which is equivalent to 2 standard pages of text