I used the box tool to select each individual one, right clicked then chose "Layer via Copy". I did that to each selection. Also, the magic wand tool will help you get the medal easily.
To re-size, I opened a new canvas, drug the layer I needed onto the new canvas, re-sized, then drug the re-sized layer back to my project (that is why I sharpened and used sponge a tad.).
That help?