Here is a very pretty and mysterious effect, performed in an extremely clean manner.
You show two sets of 10 colored cards each with Harry Potter themed pictures on them. You shuffle one of the packets and set it on the table. A spectator mixes the other pile and sets it on the table alongside your pile. When the cards from both sets are dealt, the cards have arranged themselves into matching pairs of pictures! Instant reset & examinable!
Complete with full colored cards. As featured on our DVD called CARD FESTIVAL.