Today I sat down with my eight year old and showed him a little bit about Blender. After the first video he immediately took interest and I also showed my two oldest kids the video and pointed them to the YouTube tutorials by Super3Boy and Blender site so they could play around if they wanted. In the end, Nathan came up with the animation below. I helped by doing the actual work but he pretty much directed the entire animation – which was cool. He seemed to have a pretty good interest level. You can do a Save As on this link if you want to download the blend file.