This Book Is My Tardis, Hand Stamped Doctor Who Inspired Bookmark, a Foxwise Original A sturdy, shiny aluminum bookmark, stamped by me with "this book is my tardis", along with our exclusive TARDIS stamp. Bright, sturdy aluminum is lightweight, hypoallergenic and will not tarnish. Handcrafted in the U.S. by Foxwise Jewelry. Foxwise is a collection of nerds and geeks making stuff for geeks and nerds since 2010.