A card is selected and the deck is held by the spectator. The magician ignites the flame on a lighter, then causes the lighter to completely vanish! When the deck is spread, one card is found in the deck with a severe burn mark on its back. It is the selected card!
The Sandwich Plot is a classic of magic. Most modern sandwich effects have one thing in common - they happen quickly, in the blink of an eye. Prisoners explores the other end of the spectrum, where every move is slow, clear, and deliberate.
After a routine, you ask your spectator to pull out their smartphone so they can take a selfie to remember the moment. You ask them to focus on the phone and just imagine that it takes a photo. Without the screen or any buttons being touched, the phone snaps the picture all by itself! The photo is in their library as a permanent souvenir!