Corner to corner

Stage magicians have been slicing women in half for ages; traditionally this has been a horizontal cut through the midsection, but a few decades back, someone came up with the idea of cutting the young lady lengthwise. I never did figure out how that illusion worked. And I have no idea how this variation on the theme is accomplished:

Somewhere, I suspect, an illusionist is adapting the common woodchipper to stage magic. I’m not sure I want to know how that’s going to work.