Very occasionally a trick comes along, where the method is just as good as the effect. Amazebox is such a trick! People who know Tenyo’s understand what we mean, actually wants
you show everyone how it works!
The effect is actually simple, it is a change box. So let spectators at the top do pieces of paper in the box, as soon as the lid is removed the contents are exchanged for (previously made, other) papers. So you create a perfect prediction!
No electronics, but a simple-looking cardboard box. So no doubts about your audience.
The box always stays in full view. The spectators do their own papers in the box and then you bring a spectator forward. NO ONE has touched the box.