The three of clubs is shown at the fingertips in the left hand. You explain how the pips on the card are removable and you pinch the center pip of the three with the fingertips of the right hand. In a quick action, you visually pull off the center pip of the three leaving the ace of clubs in your right hand the two of clubs in your left hand. These cards can be cleanly shown front and back. You can then go on to replace the pip by tossing the ace into the two in which it visually transforms back into the three.
This trick is so visual. The cards are always at the fingertips and face up. No duplicate cards or gimmicks required.
So what you get is an awesome, short, very visual card effect that is relatively easy, troll-proof and pack a double punch: Recommended for all.