Take a concept like that and turn it into a card trick? I suppose that's the one thing you could do to make the Useless Machine even more useless.
Maybe you could talk about the machine that exists just to turn itself off, and then say, "and in keeping with that thought, I'd like you to take a card from this deck, and then put it back."
Okay, I suppose you could show a working model of the machine, then illustrate the premise by showing them a card that keeps returning to the top of the deck (instead of actually doing a trick) and at the end, the card could be in the box.
$300 bucks for the box and a DVD. God help us all....