Boned

I'm not sure what to make of this. The obvious jokes, as tastelessly hinted at in the title of this post, are certainly nascent. But I shall refrain. "Stem cells taken from the bone marrow of men can be coaxed into something that resembles an immature sperm cell, researchers working in Germany said on Friday." Full Story at Reuters.... Can we find a use for "something that resembles an immature sperm cell?"