Meet Gameband: a smart wearable device that lets you play Minecraft anywhere. Just plug the device into a USB port on your Windows, Mac, or Linux computer, launch the Gameband app, and you are set. Gameband saves your worlds and backs them up to the cloud. The device also comes with an app that lets you customize it with messages, images, and animations.
Gameband comes pre-loaded with Minecraft maps. It is splash proof. Costs under $70 at this time.