The only legal way to do it is by changing them to a GFI outlet.
Still not going to have a ground but then you could plug in a three prong plug.
When you cange them you have to put the sticker that comes with it that says ungrounded.
Only if you are wanting to use Surge protection for your expensive electronics, and wanting proper GFCI circuits in bath, Kitchen, basement, outside, garage, crawl space, etc..
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