If you want to keep something safe there is no better place than the Tardis since you will be hiding your items outside of time and space. That’s what the Doctor Who Tardis Safe Bank is all about.
It has a flashing light and the Tardis’ regenerating sound. Sorry, no way to miniaturize yourself and step inside, but you do get the key. It’s the best way ever to keep important items safe.
It is $37.99 from Entertainment Earth. It arrives in January, but you can pre-order it now.