Simple and direct mental effect you can perform anytime, anywhere!
You hand out a wine cork to your spectator. While you're looking away, the spectator holds the cork in either hand. You can tell which hand that the cork is in. The performance can be repeated.
You can perform it with short sleeves, or even BARE NAKED.
You don't need any electric devices. You can perform it forever.
No need to reset at all. You can perform it anytime, anywhere.
All gimmicks are professionally hand made.
You can perform it on close-up, parlor, street, and even on stage! You invite 4-5 people on stage and ask one of the spectators hold the cork while you're facing away. The rest of the spectators also pretend like they are holding the cork. Then all the spectators put their fists forward. You face back to them, and ask them to raise the hand in a count 3 IN THEIR MIND if they have the cork. Then you eliminate the spectators who don't have the cork in their hands. You find out who's holding the cork. But it's not the end of the trick. You ask the last spectator to hold the cork in either hand while you are facing away again. Then you tell which hand the cork's in.