Bitcoin Cold Vault

This Bitcoin is different. Address and Key created offline. "See youtube video on how to, creating "Cold Wallets". You can put money in many times, but remove all at once. This coin would have the key embedded into the center during printing.
My Idea of this was for those people who feel they need a physical form of currency. If you do it right you can scan the printed QR code and check the balance on your phone. When your ready to spend you break the coin open get the key out and scan that Q