Here, community admin Jim McQuillan tells it better than us:
"Our members noticed that there were still of Piñata Vision cards that weren't available such as the Choclodocus, the big daddy of all piñatas. These members reverse engineered the barcodes on the Piñata Vision cards to discover how they worked. By comparing different species of pinatas and attempting to fill in the gaps in the barcode of the choclodocus, they eventually found success! In simple terms you can think of this like Jurassic Park where they took the dinosaur DNA and mixed it the DNA from other species of animals to fill in the gaps. It's just that our dinosaur happens to be a Choclodocus pinata instead."
Finally, the fruits of their labor, the Choclodocus Egg Pinata Vision Card, is available for your enjoyment. Just don't tell piñata Jeff Goldblum what they've wrought.