For 55 years Goldberg's Pulitzer Prize winning cartoon drawings of complicated machines and gadgets satirized government policies, which he saw as excessive. His cartoons combined simple machines and common household items to create complex wacky and diabolically logical machines that accomplished mundane and trivial tasks. Rube Goldberg is the only proper name included in Webster's Dictionary as an adjective, referring to "accomplishing by extremely complex, roundabout means what seemingly could be done simply."
Previous challenges have included dispensing an appropriate amount of hand sanitizer, watering a plant, replacing an incandescent light bulb with a more energy efficient design, assembling a hamburger, juicing an orange shredding 5 sheets of paper one-by-one, casting a ballot, peeling an apple, and putting a stamp on an envelope.