They aren't plug ear piercings. They're just bigger gauge piercings. You can get them at a piercing shop which are usually joined with tattoo shops. Just check in your area. The price will be a bit more than standard gauge piercings. Punches are usually more than piercings but I don't know what size you're getting so I can't say whether you're getting a punch or piercing. Some shops don't do punches but most do so just ask.