I've only come up with this

....sorry
Show the top card slowly, a normal Ace, which is then lost in the deck. Tell the spectator that when they snap their fingers, the lost card will come to the top of the deck at an unimaginable speed. On a count of three, let them snap their fingers and immediately tap the top card hard. Reveal it and say, "Well, the shock must've been huge for this card. Look, the shape..."
Same goes for the inverted Three of Clubs. Spread the cards so that they see the cards are supposed to be "White number on black back". Lose the normal 3C in the deck, tap the top card, reveal a 3C the colour of which is inverted.
Another one. Use DL and show a normal Ace. Shake the top card in mid air, and reveal that the shape has twisted.