Hmm I can see lots of uses for this.
This is just one I've thought up. A card is selected and lost in the deck. Then you cut the deck and hold the top half of the deck like a gun. 'Fire' at the tabled half of the deck, (if you could get the tabled half to move at the same time that would be good too), producing the puff. Then the chosen card is revealed by having a hole in it, or maybe a little blood splatter, from where you 'shot' it.
Ta da! I think that's rather good actually
