It's a given that most artists struggle to make money with their art. In the '60s, several of them called attention to the struggle by duplicating dollar bills and other legal tender and otherwise making money the focus of their work. David Wojnarowicz gluing Xeroxed bills to a pig's skull is an example. Another is Andy Warhol's photo-real replica of a dollar bill.
One minute they are walking by, just some kids on their way to hanging out at the park. The next thing you know, they glide before your very eyes, as if supernaturally moving on a smooth wave. No, wait ... they're walking again.
"There's a long drive way back in center field. Way back, back! Oh what a catch by Mays! ... Willie Mays just brought this crowd to its feet with a catch which must have been an optical illusion to a lot of people! Boy!"
Despite Will Oldham's lasting popularity, his experiments with facial hair often seem to have had more influence in the indie scene at times than his music. (Cex, this means you. We saw those beard photos.)