I was recently reminded of The Mind's Eye, which was an old 3D art/animation video I watched when I was very young. It and its sequel, Beyond the Mind's Eye, are big inspirations for my art today. The whole thing is on YouTube here: https://www.youtube.com/watch?v=cbG34c1qorQ
The sequel is really good too: https://www.youtube.com/watch?v=oKJzZQ9Ln-Y