Ben Cohen, cofounder of Ben and Jerry’s Ice Cream, founded True Majority in order to promote making issues like education, the environment, and health care bigger spending priorities for the federal government. In order to draw attention to these causes, True Majority and its companion organization, Business Leaders for Sensible Priorities, have used creative visual metaphors, often in the form of vehicles. The Topsy-Turvy School Bus is two school buses attached together as if they were mirrored around a horizontal plane, which illustrates that our spending priorities for education are topsy-turvy. Ben chose San Francisco based vehicle artist Tom Kennedy to build the vehicle, who in turn brought in Ideal Mechanism to consult on the vehicle dynamics and structural engineering for the bus. Ideal Mechanism compared measures of rollover propensity, predicted the effect of the modifications on the center of gravity height, and finally measured the center of gravity of the finished vehicle by measuring its weight distribution on the ground and with the front end lifted in the air.