After very little arts/crafts, you have a very deceiving mentalism device made from an ordinary
envelope. With practise, you can pull out the prediction from an envelope without even looking.
The only downside is that the prediction you pull out shouldn’t be too large, it’s possible but
at the risk of possible having a bulky envelope. It shouldn’t be much larger than a regular size
sheet of paper, so some may not like that for stage, but other than that, it’s an ingenious method
and I highly recommend it. This fooled my magician friend!