https://youtu.be/_ZB95IdyhZI https://youtu.be/xszo5lu0gq4 "A 'Do Nothing' Dominoes Box" is a "do nothing" style box using dominoes as the switch. When the dominoes are toppled by finger action, the mechanism turns itself on, returns the dominoes to the standing position, then turns itself off awaiting the next topple. The model uses no power while awaiting the dominoes to be toppled so battery life should be quite long. The family plays with it for hours on end. I leave the model sitting on the table and when anyone walks by they can't resist toppling the dominoes and watching them being restored by the mechanism. As usual, I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to ask as I do make plenty of mistakes. Designed using Autodesk Fusion 360, sliced using Ultimaker Cura 4.12.1, and 3D printed in PLA and TPU on Ultimaker S5s and an Ultimaker 3e.