X-Ray Goggles

The X-Ray Goggles are an object that Greg buys in Diary of a Wimpy Kid: The Last Straw. He sees it in an ad with the Cash Machine, Personal Hovercraft, and Throw Your Voice Ventriloquism Kit. Despite the ad's claims that the X-Ray Goggles can see through walls, metal, and clothes, Greg writes that they just made him "blurry and cross-eyed."