For some reason the mysterious YouTube algorithm started adding "restoration" videos to my feed. There are a lot of practitioners posting their amazing work making old things new again. In general I find the flow of these videos very relaxing. There is typically no dialog, just the sounds and video of a competent craftsman going about their business. The before and after images are remarkable.
I don't know why the video "Restoration of a 1920s horse racing game GeeWIZ" by MW Restoration caught my eye, but I'm glad it did. I mean I am interested in vintage things, but typically computer related not toy related. Never-the-less I watched the whole video and if you made it this far I would recommend that you do too (or at least jump ahead to the 14:20 mark to see what all the excitement is about).
At the end, with the GEE-WIZ completely and beautifully restored, the author wound some string around the the shaft adjacent to the flywheel and pulled. Immediately the horses started lurching up the incline in fits and bursts. It was at that point that I sat up and said WTH. How was this happening? Needless to say for me the hook was set.