As far as I know it’s only published in one place, Lewis Ganson’s “Give a magician enough rope and he’ll do a trick” booklet.

Description sounds good but I’m curious if anyone is familiar with it and if it’s more of a for magician gag or a practical working item? Is it worth getting the book for?
Not always of course but often the good things are published more than once (often stolen on the second and beyond time published!).

Thanks