3s A Crowd from The Magic Authority. The Magic Experts...

Remove three 3's from any deck, hand them out for full examination. The 3's are slowly but surely mixed in between 3 indifferent cards. Without any moves or switching, the 3's separate themselves from the other cards.
This is repeated a second time with the 3's face up, they are again mixed in between any 3 regular cards in the cleanest, fairest manner. Again the cards separate from each other.
Complete with both red and blue bicycle gimmicks. You need to supply your own regular bicycle deck.