Flow charting with Draggable

Flow charting with Draggable

Hi fellow Jquery lovers,just bumped to a silly question and came to forums  to get it answered .
Here is a brief overview of what is going on,
I have a page with 2 divs.Assume div1 as id="Toolbox". and div2 as id="Canvas".
Now people will drag the images inside Toolbox (which is also wrapped by a Div that is Draggable) and drop it to the Canvas and again can drag the images and align them.
Here is a excerpt of the code
  1. $('#toolbox div').draggable({helper:'clone'});
Now i am able to drag the item to the canvas but , I also want another instance of the Dragged Item in the ToolBox always available. How can i carry on with this?

Note:
By making #canvas as droppable i was able to achieve retaining the position, but the Dropped Item inside Canvas was not draggable anymore