https://www.youtube.com/watch?v=STaLBEQSlDE"]Misfire Glow Beam-Rube Goldberg Pitagora Suichi ピタゴラスイッム177 - YouTube
A new one!! https://www.youtube.com/watch?v=s37J5M6Dp-I"]The Letter C-Rube Goldberg Pitagora Suichi ピタゴラスイッム178 - YouTube