Spell book magnetic bookmark, perfect gift for readers and bookworms. Spell book magnetic bookmark. This is a Magnetic bookmark, with the quote “Don’t make me get my spell book” with an image of a skull with books. The perfect gift for avid readers or self proclaimed bookworms.. They are 4cm wide and 6cm tall when folded onto the page. These bookmarks are made from strong glossy card and features two magnets to secure the bookmark in a book.