I'm a beginner and thought articulated joints would be too above my level until I watched Austin's Lab Youtube video on how to use articulated joints in your projects. He walked me through step by step from generating my donkey image using AI (ChatGPT) to generating a 3D model in Makerworld Lab, proceeded on to simplify the mesh prior to uploading into Tinkercad. The process was so easy and understandable, plus he provided a link to free articulated joint set in Makerworld to use freely.