I’m talking about the book, not the television show. Although who knows if the show is helping the popularity of the book among non-doctors (I’m thinking so because when this was submitted it was spelled “Grey’s” which is the show)? Anyway, these are ribs, tattooed on the client’s ribcage, by Ceasar at Body Shop Tattoo in Glendale, CA.
By the way, if I’m completely off the mark and this is from the show credits or something, someone please say so in the comments.