You will need to append the clones() to the correct divs and revert them if they don't match, first accept:
all the dragable elements and then handle the revert in the drop:
section.
also you will need to create and save the origin position for the ellement you clone and drag so you can revert him to its original position and then removing it from the page.
Here is the finall script demo:
JSnippet demo draggable & droppable
have fun!