Mark Steger: Stranger Things Demogorgon Funko Pop! #1596 (#/10)Mark Steger Signature Series Stranger Things Demogorgon Funko Pop! #1596 These Funkos have been signed by Mark Steger during our most recent private signing. Mark signed with fluorescent orange paint pen, and inscribed each one with "See you in the upside down!". The Funko's have been authenticated by OC Celebrity Marketing with a QR code hologram affixed to the right side window. These Funko's also have our Signature Series Exclusive Sticker affixed