Everybody has one's vs Everybody has one's

Some examples from the web:

• It's essential to one's mental health to want to express these hidden personalities, and it's a fact of nature that everybody has one.
• I suppose everybody has one or two.
• Everybody has one except for us.
• I suppose everybody has one or two, like, you know, freckles or birthmarks.
• Look, everybody has one, and frankly, who they are says a lot about who you are.
• Just imagine if you had on the front of your car a magnet, everybody has one, with the north pole facing out, OK?
• Everybody has at least one, so no excuses.
• Seems like everybody around here has one.
• Mom said that everybody has at least one story that they can't tell others.
• So I looked at all your phones, And everybody has at least one picture of Pete and Lucas.
• Since you went away, I have had no pleasure in it, and everybody one cares for is gone.
• A social Europe must be one where everybody has the right to work, to a job, to continuous training, to a rise in their standard of living and to social protection.
• The problem is as always - not just for the people of Scotland but for everybody - one of public acceptability.
• Everybody gets one big mistake in life and one opportunity to fix it.
• Here, everybody take one, turn to Channel 3.
• You stay around long enough, everybody get one.
• Everybody bought one at the auction.
• You can't save everybody in one night, Sir Galahad.
• We can't fit everybody into one helicopter.
• What I didn't mention last night was that everybody gets one practice spin.

Some examples from the web:

• It's essential to one's mental health to want to express these hidden personalities, and it's a fact of nature that everybody has one.
• I suppose everybody has one or two.
• Everybody has one except for us.
• I suppose everybody has one or two, like, you know, freckles or birthmarks.
• Look, everybody has one, and frankly, who they are says a lot about who you are.
• Just imagine if you had on the front of your car a magnet, everybody has one, with the north pole facing out, OK?
• Everybody has at least one, so no excuses.
• Seems like everybody around here has one.
• Mom said that everybody has at least one story that they can't tell others.
• So I looked at all your phones, And everybody has at least one picture of Pete and Lucas.
• Since you went away, I have had no pleasure in it, and everybody one cares for is gone.
• A social Europe must be one where everybody has the right to work, to a job, to continuous training, to a rise in their standard of living and to social protection.
• The problem is as always - not just for the people of Scotland but for everybody - one of public acceptability.
• Everybody gets one big mistake in life and one opportunity to fix it.
• Here, everybody take one, turn to Channel 3.
• You stay around long enough, everybody get one.
• Everybody bought one at the auction.
• You can't save everybody in one night, Sir Galahad.
• We can't fit everybody into one helicopter.
• What I didn't mention last night was that everybody gets one practice spin.