I'm designing my energy transformation for my rube goldberg project, and i can't seem to figure out how to design some of them. How could i represent the american boycott of the moscow olympics, the soviet boycott of the Los Angeles Olympics, the signing of the INF treaty between the U.S. and the USSR, the launch of the space shuttle Columbia, and the attempted assassination of Ronald Regan? oh, and also, the assassination of John Lennon.

Before I begin, do you know who Rube Goldberg is?!