Here's anothertake on the visual two-card transposition. First card is out-jog in middle of the deck. Second card is on top of the deck. With a magical gesture, the first card appears face up on top of the deck and in middle of the deck is the second card...
Bonus: visual one card production. You can consult Paul Wilson's Extreme Possibilities DVD. He has a great way to use this card production. Or you can make four of a kind appear from nowhere