"The audience can't contain themselves

that is easy to do

a silver cord

Impossible Miniature Rising Cards (Martin Lewis)

or even a fork

FROGGY 2.0 (blau) | Erick White Valenzuela "The audience can't contain themselvesErick White has created an improved version of our first version of froggy, now ready to use out of the box. You just need to fold a card, have a deck of cards and you are ready to amaze them. We presented it at Magic Live and the audience couldn't stop being amazed by the method used in this device. It is fast, invisible and you end up with clean hands. The best comments from so many magicians at the convention were: "I can't believe what I'm seeing"