Forever ago, as a child, I was watching - and not particularly enjoying - a Disney film "The Computer Wore Tennis Shoes". I can't remember much about it at all - other than a tiny snippet where a precocious and bright child recognised and named Duchamp's painting "Nude Descending a Staircase, No 2". This was allegedly unheard of sophistication for an American, particularly a pre teen one.
Should you google this be careful to get the Duchamp cubist painting, and not the appalling and lurid Mel Ramos realist one of the same name.
Aaaanyhow the name and image of the painting stuck with me - so that eons later I enjoyed this sculptural joke: