Tardis Puzzle Box

A scale model of Doctors Who's Tardis with a puzzle that when unlocked opens the top. Perfect as a gift for Doctor Who fans, even better with something hidden inside that they have to unlock the puzzle to find.

To setup, cut off the rail connecting each of the pins with a knife. Carefully slide the four pins into their holders on the base and then place the top on. Pick up the model and no matter which way the Tardis is lifted or turned, there will always be a pin locking the lid and preventing opening. To open the Tardis, simply spin the box upright on a flat surface and the centrifugal force will cause the four pins to move back into their holders, allowing the lid to be easily lifted off.