OFFICIAL HARRY POTTER DEATHLY HALLOWS BOOKMARK WITH CHARM. This Bookmark has been created using the official style guide from Warner Bros. Silver Plated Bookmark with Deathly Hallows attached charm Approx. 15mm. This Bookmark comes on the official Harry Potter branded card packaging and shows the Warner Bros logo on the reverse. This bookmark is one of many new Harry Potter Bookmarks we offer as a part of a collection.