Why should you opt for the drab boring gray safety vaults when you can pick up colorful and trendier ones (only you may have to go to Japan to buy them!) that match your personality? Japanese stationary giant Nakabayashi has come out with these really trendy and colorful vaults for safe keeping your precious stuff. They work with 4 AAA size batteries and are handy to stash away your petty cash or cell phones and the likes. It comes in two sizes; the large size is about 30x20x20cm and the smaller one is 20x17x17. And as Tokyomango suggests, keep them with the kids toys, no one will ever guess that you got the real stuff hiding in the open! The vaults are available in Red, Blue and Yellow colors.