Justin has been responsible for some really good 3D models in the sonic community - you may have seen his Chao renders in this topic.
One of his latest projects is a full 3D render of the Chao Island mascot, Coco! He has uploaded a cool timelapse showing how Coco was brought to life using the software Blender in this youtube video:
Justin is also working on a complete remake of Sonic Chronicles for PC, where every Chao is being re-designed and even some brand new Chao created.
And maybe the most exciting thing coming up is the Chao Island Chao Viewer! This will be a very cool feature of the new site that will let you put together a 3D model of your own chao and view and share it! Here's a sneak preview:

Stay tuned for more updates!