MIRACLE BOX - Instructions
This tiny little box holds a very magical secret. There is a secret side that can unlock. When this box is opened you can push on the inside and the timber side will open.
Once this is done, lock the box and leave it somewhere away from your audience. You can borrow objects and make them appear in a locked box. By pushing on the box edge again it will lock the box. People will need a key to open it again.