Here you can download official papercraft packages! These were originally posted on the official Chao Laboratory website, but they have long since been taken down. However, they have been saved on Chao Island for you all to enjoy!
To download them, just click on the papercraft package that you would like, and download the file which appears. Most are provided as .png images, which you can open in an image viewer. Some are provided as .pdo files. These .pdo files can be opened in the free program Pepakura Viewer; this viewer allows you to see the model in full 3D, and it helps you to assemble and construct the model.