The LEGO Great Ball Contraption: 17 different modules of incredibleRion NakayaSeptember 20, 2012September 14, 2018
Pitagora Suitchi (Pythagora Switch) – Marble chain reactionRion NakayaJanuary 23, 2012January 3, 2017
A Mouth, Arm, and Eye, Rube Goldberg-style for KuratoriumRion NakayaSeptember 19, 2011January 6, 2020