title: JavaFX: How to implement a Custom Tooltip
body: <p>I'm trying to create my own Tooltip class. Basically the tooltip is going to be a 
  <strong>Label</strong> with a <strong>pointer graphic</strong>(FontAwesomeView) on the bottom all wrapped inside a <strong>vbox</strong>.</p>
  
  <p>The part i'm stuck at is, how do i <strong>show</strong> my custom tooltip on the screen <strong>without</strong> adding it to a parent node?</p>