A bottle label magically penetrates the glass and is attached on the inside of the bottle.
Effect: Write down a prediction, for example a playing card. Since you have no piece of paper you write the prediction on the label of a cola bottle. Then have a spectator take a card from your deck (yes folks, you will need to force the card). And then reveal that you have correctly predicted the card. To give the spectator a little souvenir you sign the bottle label. On further thought you want to make it even more special. Take out your lighter, burn the label and suddenly the label with the prediction and your signature has penetrated the glass bottle and sits on the inside of the bottle.
Ralf offers a variation where the corner of a selected card penetrates the glass together with the label.
This trick needs significant preparation and setup. Only recommended for the DIY handyman.
1st edition 2017, length 34 min