Foo on you . Or is it Foo for you? Yes, that's it, Foo for you . That's right, this Foo Can is really for you. Here's what it does: water is poured into the tall, metal can. Without any kind of cover, the liquid vanishes from the can, which may be turned upside down and twirled about on a wand. At any time, you can make the liquid re-appear, and pour it out of the can.