Baffling Drawing Duplication & More!

Show forty white cards with all different printed shapes, shuffle, and place them face down on the table.
You ask a spectator to cut off a small packet of the deck, look at the shape he cut to and remember it.

Next, ask him to shuffle the packet and then ask another spectator to take the,
balance of the deck from the table and place it in his pocket.
All these actions are made with your back to both spectators.
Now ask the spectator to mix his packet face up on the table.

Just now, you turn and explain that you will show the cards from the table, one by one,

and at the exact moment he sees his shape he has to think
"This is my shape!" Finally, you take a pad and duplicate the chosen shape each and every time!

Everything can be examined! NO marks, the backs are plain white!
The shapes are all different!