One effect possible with MEMENTO:
A card is freely selected from a deck and returned. The magician points to a card box that has been in view from the start. Inside is found a clear crystal block that showcases a playing card...The card as the words "My Favorite Card" written across its face... The card is an exact match for the selection!
Another effect possible with MEMENTO:
A spectator signs a card and returns it to the deck. The magician reaches into his pocket and INSTANTLY removes a crystal clear block that contains the signed card.
BEAUTIFUL AND BAFFLING