Ads in Greg's comic

In the third book of "Diary of a Wimpy Kid", "The Last Straw", Greg finds ripoff ads in the back of a comic book, and buys them.

Ads in comic book
- The "X-ray" goggles were fake and just blurred his vision. - The hovercraft required tons of expensive materials and only came with the blue prints - The "Print Your Own Money" device turned out to be a cheap magic trick - The "Throw Your Voice" ad came with simple instructions that did not work