Try this articulated dragon that my sister made on TinkerCAD. It may not be big, it may not be complicated, it may not even look like a dragon (especially the head and the tail), but I think that it's still pretty cool. Enjoy!

I wanted to create a completely normal Benchy, but with a little twist at they end. I know the photo isn't realistic of the actual print, but that's just because I'm busy making other things, so I haven't printed it yet. See if you can print it without supports, and enjoy!