It just occurred to me that Etch-A-Sketch was the Flappy Bird of the Sixties - fascinating but frustrating as hell, so you kept going. But it's 2018 so Sunny Balasubramanian wrote software and built hardware to help. http://sunnybala.com/2018/09/10/python-etch-a-sketch.html
Wyss Institute for Biologically Inspired Engineering and the Harvard School of Engineering and Applied Sciences developed a lightweight, wearable soft exosuit that's basically a soft robot to help people move. https://wyss.harvard.edu/technology/soft-exosuit/
NASA 'Home and City' is an interactive tool that showcases the very earthly results of space research - right down to your Ovation guitar. https://homeandcity.nasa.gov