How Did David Bowie Do the Juggling Magic in ‘Labyrinth’

Do you recall the amazing "Crystals" juggling trick David Bowie did in the movie "Labyrinth"? Any guesses as to how he did that? Here's the answer.

The magic comes in the form of one Michael Moschen, a critically acclaimed performer the New York Times called "exhilarating virtuoso entertainment" and "flawless purity."