Munny is a do-it-yourself (diy) toy designed by the American company Kidrobot.  In short, it is a vinyl toy that has no color, allowing you to design and paint it yourself.  This practice has taken off as an artistic movement, with arts around the world doing their versions of Munny.  So of these are one-off’s meaning only one is made.  Others are released in limited additions as with other limited edition vinyl toys.