Criss Angel performed the magic coin into the egg teaching Nefesch - Hatching

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Spectators ran into a signature coin intact egg .Eggs and coins can be borrowed , but also allows the audience to open their own eggs out coins.

You borrow a normal egg from a spectator, who signs it with a permanent pen. Then you borrow a coin and also have it signed by the spectator. Now you proceed to put the signed egg and signed coin together and without making any funny or weird movements. The coin visually penetrates the egg and goes through its shell !. It all happens right before the eyes of the spectator. The egg is now shown all around completely intact, with no scratches or holes. Your hands are shown both sides, all angles are totally clean, you are not hiding or palming the coin, it really has 'melted' into the egg! You prove it by slowly and gently breaking the egg into a glass. The coin does not just appear to fall into the glass , it visually coming out from the inside of the egg while it is being opened!

If you prefer, you can let spectator open the egg himself, and take out the signed coin from inside of it!