Separate Mirrored Object, is it possible?

In an attempt to make matching gloves, I began to wonder if when I am finished will I be able to separate the mirrored image into its own image? I thought of this as it may be an easier way to produce a match. I checked the manual, but unsure of what I am really looking for outside of the mirror topic of discussion within the manual. Is it possible to separate this object onto its own object?

Apply the mirror modifier
In edit mode select the vertices you want to seperate and press P