David Copperfield

The "Clearly Impossible" version of the sawing a woman in half illusion that David used to perform on fiancé Claudia Schiffer when she joined him in his shows as a special guest assistant has sometimes been voted as the most baffling version of the illusion ever performed. The reason it was considered so baffling was because not only did the box used to cover Claudia have completely transparent sides, allowing the audience to see her inside it, but also because while one audience member helped David saw through Claudia using a two-person saw, a second audience member held onto Claudia's feet from before she was covered by the box until after she'd been sawed through and her halves had been separated.