Ed's Dinosaur Park was a scam that appeared in "The Good Ol' Ed." It was seen in a flashback after Edd found a remote control in the time capsule and related this tale to explain the origins of the remote. In the scam, the trio convinced Jonny and Jimmy to go back to the Triassic period in their time machine. Once their clients the machine, Ed took the it to the woods, shaking it all the way, and then allowed Jonny and Jimmy out on their own.
When the two exited, they found a world of dinosaurs. Jimmy was terrified, but Jonny enjoyed it and rode one of the dinosaurs. The scam failed, however, when the dinosaur (really Ed in a costume) crashed into the mouth of a T. Rex, and Jonny saw that Edd was really controlling the dinosaur with the remote control that started the flashback.
- This scam may never have actually happened, as Edd was the only one who remembered it and his friends thought he was making up the story.