This could be one of my favorite props. In our case, players find a chess piece during the game. When the chess piece is placed in the correct position, the plasma ball lights up - players then need to hold the ball, chant a spell - and a magic door opens!
We saw a similar puzzle in Bangkok, in their case they had ...
There are loads of things you can do with the hold hand prop. We used this prop for our Forgotten Temple; players touch a rather creepy monkey skeleton on each side of the room - and once contact is made, a cove door "magically" slides open. We gave gotten rave reviews, and if you can hide the entrance efficiently - a ...