Oil & Water (World's Greatest Magic) - Video DownloadThe basic plot of the card effect that we know today as Oil and Water can be traced back to the 1940s and a Walter Gibson trick from the pages of The Jinx. It was Ed Marlo who attached the name "Oil and Water" to the effect (in addition to most likely creating the greatest number of methods for the effect.) The premise of the trick is maddeningly simple: black and red playing cards, usually in small packets, continually separate despite the magician's