The Haunted Car
Step aside, Christine. The Goosebumps series has its own car that drives itself, haunted by the ghost of a girl who died in it, and this car was featured in the trailer being used as a chariot for Slappy the Dummy. It even has a license plate that says "HAUNTED," just in case anyone missed it.
The Haunted Mask
Speaking of hauntings, "The Haunted Mask" has also made it into the Goosebumps movie. This Halloween accessory grabs hold of the wearer's head and slowly takes over their brain, forcing them to do increasingly evil things until they eventually become a monster. The gaggle of characters at last year's Comic-Con included a little girl who had fallen victim to the Haunted Mask.
Revenge of the Living Dummy
The first entry on this list from the Goosebump HorrorLand series, "Revenge of the Living Dummy" is one of several HorrorLand books to feature mechanical fortune teller Madame Doom, who comes to life in the Goosebumps movie and can be spotted in the trailer.
A Night in Terror Tower
Be careful when vacationing in London as you may find yourself being stalked by the Lord High Executioner, like the two young protagonists of "A Night in Terror Tower". The Executioner himself seems to be a prominent player in the Goosebumps movie's collection of walking nightmares, wielding a highly dangerous headsman's axe.
Night of the Living Dummy
The linchpin of the monster mob is Slappy the Dummy, which is appropriate since he's the unofficial mascot of the Goosebumps series. He's appeared in many of the books, both as the main antagonist and in cameo mentions, and can be brought to life by uttering the dreaded words "Karru Marri Odonna Loma Molonu Karrano." So don't do that.