Maybe 'Russian Roulette is not the same without a gun' but it's surely much safer. With this item, the only worry you'll have is whether you'll be able to hear properly immediately afterwards. You can fill the balloon with liquid of your choice and bring the game to the next level.
Your kid won't be late to school anymore! No need for changing batteries, this clock draws it's energy from the water. If you are looking for interesting gift for a friend or just an office addition, this is just for you.